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Finding the Fourth Proportional to 109,671.86, 151,346.49 and 59,370.50

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Solution

The fourth proportional to 109,671.86, 151,346.49 and 59,370.50 is: 81,930.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,671.86 : 151,346.49 = 59,370.50 : x
  2. Step 2: Convert to fraction form
    109,671.86/151,346.49 = 59,370.50/x
  3. Step 3: Cross multiply
    109,671.86x = 151,346.49 × 59,370.50
  4. Step 4: Simplify right side
    109,671.86x = 8,985,516,784.55
  5. Step 5: Solve for x
    x = 8,985,516,784.55/109,671.86
  6. Step 6: Final answer
    x = 81,930.92

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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.