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Finding the Fourth Proportional to 157,530.08, 217,404.40 and 89,568.40

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Solution

The fourth proportional to 157,530.08, 217,404.40 and 89,568.40 is: 123,611.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,530.08 : 217,404.40 = 89,568.40 : x
  2. Step 2: Convert to fraction form
    157,530.08/217,404.40 = 89,568.40/x
  3. Step 3: Cross multiply
    157,530.08x = 217,404.40 × 89,568.40
  4. Step 4: Simplify right side
    157,530.08x = 19,472,564,260.96
  5. Step 5: Solve for x
    x = 19,472,564,260.96/157,530.08
  6. Step 6: Final answer
    x = 123,611.72

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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.