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Finding the Fourth Proportional to 137,250.92, 205,909.70 and 43,756.60

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Solution

The fourth proportional to 137,250.92, 205,909.70 and 43,756.60 is: 65,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,250.92 : 205,909.70 = 43,756.60 : x
  2. Step 2: Convert to fraction form
    137,250.92/205,909.70 = 43,756.60/x
  3. Step 3: Cross multiply
    137,250.92x = 205,909.70 × 43,756.60
  4. Step 4: Simplify right side
    137,250.92x = 9,009,908,379.02
  5. Step 5: Solve for x
    x = 9,009,908,379.02/137,250.92
  6. Step 6: Final answer
    x = 65,645.52

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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.