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Finding the Fourth Proportional to 124,299.52, 171,533.12 and 67,710.72

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Solution

The fourth proportional to 124,299.52, 171,533.12 and 67,710.72 is: 93,440.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,299.52 : 171,533.12 = 67,710.72 : x
  2. Step 2: Convert to fraction form
    124,299.52/171,533.12 = 67,710.72/x
  3. Step 3: Cross multiply
    124,299.52x = 171,533.12 × 67,710.72
  4. Step 4: Simplify right side
    124,299.52x = 11,614,631,059.05
  5. Step 5: Solve for x
    x = 11,614,631,059.05/124,299.52
  6. Step 6: Final answer
    x = 93,440.68

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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.