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Finding the Fourth Proportional to 372,575.17, 514,124.42 and 211,430.21

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Solution

The fourth proportional to 372,575.17, 514,124.42 and 211,430.21 is: 291,757.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,575.17 : 514,124.42 = 211,430.21 : x
  2. Step 2: Convert to fraction form
    372,575.17/514,124.42 = 211,430.21/x
  3. Step 3: Cross multiply
    372,575.17x = 514,124.42 × 211,430.21
  4. Step 4: Simplify right side
    372,575.17x = 108,701,434,314.89
  5. Step 5: Solve for x
    x = 108,701,434,314.89/372,575.17
  6. Step 6: Final answer
    x = 291,757.06

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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.