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Finding the Fourth Proportional to 334,349.76, 501,527.84 and 85,031.68

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Solution

The fourth proportional to 334,349.76, 501,527.84 and 85,031.68 is: 127,548.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,349.76 : 501,527.84 = 85,031.68 : x
  2. Step 2: Convert to fraction form
    334,349.76/501,527.84 = 85,031.68/x
  3. Step 3: Cross multiply
    334,349.76x = 501,527.84 × 85,031.68
  4. Step 4: Simplify right side
    334,349.76x = 42,645,754,801.97
  5. Step 5: Solve for x
    x = 42,645,754,801.97/334,349.76
  6. Step 6: Final answer
    x = 127,548.33

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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.