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Finding the Fourth Proportional to 357,046.20, 535,569.30 and 146,575.80

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Solution

The fourth proportional to 357,046.20, 535,569.30 and 146,575.80 is: 219,863.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,046.20 : 535,569.30 = 146,575.80 : x
  2. Step 2: Convert to fraction form
    357,046.20/535,569.30 = 146,575.80/x
  3. Step 3: Cross multiply
    357,046.20x = 535,569.30 × 146,575.80
  4. Step 4: Simplify right side
    357,046.20x = 78,501,498,602.94
  5. Step 5: Solve for x
    x = 78,501,498,602.94/357,046.20
  6. Step 6: Final answer
    x = 219,863.70

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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.