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Finding the Fourth Proportional to 112,957.29, 155,881.22 and 62,656.29

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Solution

The fourth proportional to 112,957.29, 155,881.22 and 62,656.29 is: 86,465.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,957.29 : 155,881.22 = 62,656.29 : x
  2. Step 2: Convert to fraction form
    112,957.29/155,881.22 = 62,656.29/x
  3. Step 3: Cross multiply
    112,957.29x = 155,881.22 × 62,656.29
  4. Step 4: Simplify right side
    112,957.29x = 9,766,938,612.59
  5. Step 5: Solve for x
    x = 9,766,938,612.59/112,957.29
  6. Step 6: Final answer
    x = 86,465.77

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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.