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Finding the Fourth Proportional to 442,218.60, 663,327.90 and 146,730.60

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Solution

The fourth proportional to 442,218.60, 663,327.90 and 146,730.60 is: 220,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,218.60 : 663,327.90 = 146,730.60 : x
  2. Step 2: Convert to fraction form
    442,218.60/663,327.90 = 146,730.60/x
  3. Step 3: Cross multiply
    442,218.60x = 663,327.90 × 146,730.60
  4. Step 4: Simplify right side
    442,218.60x = 97,330,500,763.74
  5. Step 5: Solve for x
    x = 97,330,500,763.74/442,218.60
  6. Step 6: Final answer
    x = 220,095.90

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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.