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Finding the Fourth Proportional to 169,655,201.70, 254,482,802.55 and 83,561,759.70

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Solution

The fourth proportional to 169,655,201.70, 254,482,802.55 and 83,561,759.70 is: 125,342,639.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,655,201.70 : 254,482,802.55 = 83,561,759.70 : x
  2. Step 2: Convert to fraction form
    169,655,201.70/254,482,802.55 = 83,561,759.70/x
  3. Step 3: Cross multiply
    169,655,201.70x = 254,482,802.55 × 83,561,759.70
  4. Step 4: Simplify right side
    169,655,201.70x = 21,265,030,794,465,648
  5. Step 5: Solve for x
    x = 21,265,030,794,465,648/169,655,201.70
  6. Step 6: Final answer
    x = 125,342,639.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.