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Finding the Fourth Proportional to 169,645.80, 254,468.70 and 155,130.60

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Solution

The fourth proportional to 169,645.80, 254,468.70 and 155,130.60 is: 232,695.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,645.80 : 254,468.70 = 155,130.60 : x
  2. Step 2: Convert to fraction form
    169,645.80/254,468.70 = 155,130.60/x
  3. Step 3: Cross multiply
    169,645.80x = 254,468.70 × 155,130.60
  4. Step 4: Simplify right side
    169,645.80x = 39,475,882,112.22
  5. Step 5: Solve for x
    x = 39,475,882,112.22/169,645.80
  6. Step 6: Final answer
    x = 232,695.90

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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.