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Finding the Fourth Proportional to 60,580.99, 83,425.38 and 47,129.59

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Solution

The fourth proportional to 60,580.99, 83,425.38 and 47,129.59 is: 64,901.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,580.99 : 83,425.38 = 47,129.59 : x
  2. Step 2: Convert to fraction form
    60,580.99/83,425.38 = 47,129.59/x
  3. Step 3: Cross multiply
    60,580.99x = 83,425.38 × 47,129.59
  4. Step 4: Simplify right side
    60,580.99x = 3,931,803,954.99
  5. Step 5: Solve for x
    x = 3,931,803,954.99/60,580.99
  6. Step 6: Final answer
    x = 64,901.61

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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.