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Finding the Fourth Proportional to 74,732.52, 112,127.94 and 43,125.89

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Solution

The fourth proportional to 74,732.52, 112,127.94 and 43,125.89 is: 64,705.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,732.52 : 112,127.94 = 43,125.89 : x
  2. Step 2: Convert to fraction form
    74,732.52/112,127.94 = 43,125.89/x
  3. Step 3: Cross multiply
    74,732.52x = 112,127.94 × 43,125.89
  4. Step 4: Simplify right side
    74,732.52x = 4,835,617,206.37
  5. Step 5: Solve for x
    x = 4,835,617,206.37/74,732.52
  6. Step 6: Final answer
    x = 64,705.66

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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.