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Finding the Fourth Proportional to 493,688.50, 740,535.18 and 119,711.50

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Solution

The fourth proportional to 493,688.50, 740,535.18 and 119,711.50 is: 179,567.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,688.50 : 740,535.18 = 119,711.50 : x
  2. Step 2: Convert to fraction form
    493,688.50/740,535.18 = 119,711.50/x
  3. Step 3: Cross multiply
    493,688.50x = 740,535.18 × 119,711.50
  4. Step 4: Simplify right side
    493,688.50x = 88,650,577,200.57
  5. Step 5: Solve for x
    x = 88,650,577,200.57/493,688.50
  6. Step 6: Final answer
    x = 179,567.84

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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.