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Finding the Fourth Proportional to 157,412.64, 236,124.72 and 63,916.32

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Solution

The fourth proportional to 157,412.64, 236,124.72 and 63,916.32 is: 95,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,412.64 : 236,124.72 = 63,916.32 : x
  2. Step 2: Convert to fraction form
    157,412.64/236,124.72 = 63,916.32/x
  3. Step 3: Cross multiply
    157,412.64x = 236,124.72 × 63,916.32
  4. Step 4: Simplify right side
    157,412.64x = 15,092,223,163.43
  5. Step 5: Solve for x
    x = 15,092,223,163.43/157,412.64
  6. Step 6: Final answer
    x = 95,876.82

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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.