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Finding the Fourth Proportional to 58,407.92, 87,561.34 and 49,580.92

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Solution

The fourth proportional to 58,407.92, 87,561.34 and 49,580.92 is: 74,328.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,407.92 : 87,561.34 = 49,580.92 : x
  2. Step 2: Convert to fraction form
    58,407.92/87,561.34 = 49,580.92/x
  3. Step 3: Cross multiply
    58,407.92x = 87,561.34 × 49,580.92
  4. Step 4: Simplify right side
    58,407.92x = 4,341,371,793.63
  5. Step 5: Solve for x
    x = 4,341,371,793.63/58,407.92
  6. Step 6: Final answer
    x = 74,328.48

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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.