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Finding the Fourth Proportional to 101,539.52, 140,124.52 and 56,827.52

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Solution

The fourth proportional to 101,539.52, 140,124.52 and 56,827.52 is: 78,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,539.52 : 140,124.52 = 56,827.52 : x
  2. Step 2: Convert to fraction form
    101,539.52/140,124.52 = 56,827.52/x
  3. Step 3: Cross multiply
    101,539.52x = 140,124.52 × 56,827.52
  4. Step 4: Simplify right side
    101,539.52x = 7,962,928,962.79
  5. Step 5: Solve for x
    x = 7,962,928,962.79/101,539.52
  6. Step 6: Final answer
    x = 78,421.97

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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.