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Finding the Fourth Proportional to 372,645.42, 514,253.18 and 211,503.15

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Solution

The fourth proportional to 372,645.42, 514,253.18 and 211,503.15 is: 291,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,645.42 : 514,253.18 = 211,503.15 : x
  2. Step 2: Convert to fraction form
    372,645.42/514,253.18 = 211,503.15/x
  3. Step 3: Cross multiply
    372,645.42x = 514,253.18 × 211,503.15
  4. Step 4: Simplify right side
    372,645.42x = 108,766,166,410.00
  5. Step 5: Solve for x
    x = 108,766,166,410.00/372,645.42
  6. Step 6: Final answer
    x = 291,875.76

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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.