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Finding the Fourth Proportional to 144,608.70, 216,913.05 and 127,112.70

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Solution

The fourth proportional to 144,608.70, 216,913.05 and 127,112.70 is: 190,669.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,608.70 : 216,913.05 = 127,112.70 : x
  2. Step 2: Convert to fraction form
    144,608.70/216,913.05 = 127,112.70/x
  3. Step 3: Cross multiply
    144,608.70x = 216,913.05 × 127,112.70
  4. Step 4: Simplify right side
    144,608.70x = 27,572,403,450.74
  5. Step 5: Solve for x
    x = 27,572,403,450.74/144,608.70
  6. Step 6: Final answer
    x = 190,669.05

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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.