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Finding the Fourth Proportional to 334,447.60, 501,671.40 and 156,972.55

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Solution

The fourth proportional to 334,447.60, 501,671.40 and 156,972.55 is: 235,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,447.60 : 501,671.40 = 156,972.55 : x
  2. Step 2: Convert to fraction form
    334,447.60/501,671.40 = 156,972.55/x
  3. Step 3: Cross multiply
    334,447.60x = 501,671.40 × 156,972.55
  4. Step 4: Simplify right side
    334,447.60x = 78,748,638,920.07
  5. Step 5: Solve for x
    x = 78,748,638,920.07/334,447.60
  6. Step 6: Final answer
    x = 235,458.83

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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.