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Finding the Fourth Proportional to 334,437.85, 501,656.78 and 156,962.80

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Solution

The fourth proportional to 334,437.85, 501,656.78 and 156,962.80 is: 235,444.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,437.85 : 501,656.78 = 156,962.80 : x
  2. Step 2: Convert to fraction form
    334,437.85/501,656.78 = 156,962.80/x
  3. Step 3: Cross multiply
    334,437.85x = 501,656.78 × 156,962.80
  4. Step 4: Simplify right side
    334,437.85x = 78,741,452,827.78
  5. Step 5: Solve for x
    x = 78,741,452,827.78/334,437.85
  6. Step 6: Final answer
    x = 235,444.20

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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.