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Finding the Fourth Proportional to 442,911.70, 664,237.95 and 158,569.30

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Solution

The fourth proportional to 442,911.70, 664,237.95 and 158,569.30 is: 237,807.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,911.70 : 664,237.95 = 158,569.30 : x
  2. Step 2: Convert to fraction form
    442,911.70/664,237.95 = 158,569.30/x
  3. Step 3: Cross multiply
    442,911.70x = 664,237.95 × 158,569.30
  4. Step 4: Simplify right side
    442,911.70x = 105,327,746,764.94
  5. Step 5: Solve for x
    x = 105,327,746,764.94/442,911.70
  6. Step 6: Final answer
    x = 237,807.55

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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.