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Finding the Fourth Proportional to 157,192.29, 216,925.39 and 85,572.29

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Solution

The fourth proportional to 157,192.29, 216,925.39 and 85,572.29 is: 118,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,192.29 : 216,925.39 = 85,572.29 : x
  2. Step 2: Convert to fraction form
    157,192.29/216,925.39 = 85,572.29/x
  3. Step 3: Cross multiply
    157,192.29x = 216,925.39 × 85,572.29
  4. Step 4: Simplify right side
    157,192.29x = 18,562,802,381.44
  5. Step 5: Solve for x
    x = 18,562,802,381.44/157,192.29
  6. Step 6: Final answer
    x = 118,089.78

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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.