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Finding the Fourth Proportional to 372,505.60, 558,845.16 and 106,269.76

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Solution

The fourth proportional to 372,505.60, 558,845.16 and 106,269.76 is: 159,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,505.60 : 558,845.16 = 106,269.76 : x
  2. Step 2: Convert to fraction form
    372,505.60/558,845.16 = 106,269.76/x
  3. Step 3: Cross multiply
    372,505.60x = 558,845.16 × 106,269.76
  4. Step 4: Simplify right side
    372,505.60x = 59,388,341,030.36
  5. Step 5: Solve for x
    x = 59,388,341,030.36/372,505.60
  6. Step 6: Final answer
    x = 159,429.39

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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.