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Finding the Fourth Proportional to 157,606.56, 217,488.19 and 89,640.07

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Solution

The fourth proportional to 157,606.56, 217,488.19 and 89,640.07 is: 123,698.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,606.56 : 217,488.19 = 89,640.07 : x
  2. Step 2: Convert to fraction form
    157,606.56/217,488.19 = 89,640.07/x
  3. Step 3: Cross multiply
    157,606.56x = 217,488.19 × 89,640.07
  4. Step 4: Simplify right side
    157,606.56x = 19,495,655,976.03
  5. Step 5: Solve for x
    x = 19,495,655,976.03/157,606.56
  6. Step 6: Final answer
    x = 123,698.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.