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Finding the Fourth Proportional to 125,957.38, 173,808.33 and 77,551.63

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Solution

The fourth proportional to 125,957.38, 173,808.33 and 77,551.63 is: 107,013.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,957.38 : 173,808.33 = 77,551.63 : x
  2. Step 2: Convert to fraction form
    125,957.38/173,808.33 = 77,551.63/x
  3. Step 3: Cross multiply
    125,957.38x = 173,808.33 × 77,551.63
  4. Step 4: Simplify right side
    125,957.38x = 13,479,119,009.97
  5. Step 5: Solve for x
    x = 13,479,119,009.97/125,957.38
  6. Step 6: Final answer
    x = 107,013.33

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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.