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Finding the Fourth Proportional to 137,178.55, 205,833.42 and 48,473.83

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Solution

The fourth proportional to 137,178.55, 205,833.42 and 48,473.83 is: 72,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,178.55 : 205,833.42 = 48,473.83 : x
  2. Step 2: Convert to fraction form
    137,178.55/205,833.42 = 48,473.83/x
  3. Step 3: Cross multiply
    137,178.55x = 205,833.42 × 48,473.83
  4. Step 4: Simplify right side
    137,178.55x = 9,977,533,308.88
  5. Step 5: Solve for x
    x = 9,977,533,308.88/137,178.55
  6. Step 6: Final answer
    x = 72,733.92

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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.