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Finding the Fourth Proportional to 99,059.76, 148,587.94 and 39,893.92

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Solution

The fourth proportional to 99,059.76, 148,587.94 and 39,893.92 is: 59,840.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,059.76 : 148,587.94 = 39,893.92 : x
  2. Step 2: Convert to fraction form
    99,059.76/148,587.94 = 39,893.92/x
  3. Step 3: Cross multiply
    99,059.76x = 148,587.94 × 39,893.92
  4. Step 4: Simplify right side
    99,059.76x = 5,927,755,391.32
  5. Step 5: Solve for x
    x = 5,927,755,391.32/99,059.76
  6. Step 6: Final answer
    x = 59,840.20

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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.