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Finding the Fourth Proportional to 372,687.60, 514,355.16 and 211,594.80

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Solution

The fourth proportional to 372,687.60, 514,355.16 and 211,594.80 is: 292,027.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,687.60 : 514,355.16 = 211,594.80 : x
  2. Step 2: Convert to fraction form
    372,687.60/514,355.16 = 211,594.80/x
  3. Step 3: Cross multiply
    372,687.60x = 514,355.16 × 211,594.80
  4. Step 4: Simplify right side
    372,687.60x = 108,834,877,209.17
  5. Step 5: Solve for x
    x = 108,834,877,209.17/372,687.60
  6. Step 6: Final answer
    x = 292,027.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.