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Finding the Fourth Proportional to 279,166.55, 418,580.88 and 125,264.32

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Solution

The fourth proportional to 279,166.55, 418,580.88 and 125,264.32 is: 187,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,166.55 : 418,580.88 = 125,264.32 : x
  2. Step 2: Convert to fraction form
    279,166.55/418,580.88 = 125,264.32/x
  3. Step 3: Cross multiply
    279,166.55x = 418,580.88 × 125,264.32
  4. Step 4: Simplify right side
    279,166.55x = 52,433,249,821.43
  5. Step 5: Solve for x
    x = 52,433,249,821.43/279,166.55
  6. Step 6: Final answer
    x = 187,820.68

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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.