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Finding the Fourth Proportional to 249,600.60, 374,400.90 and 91,808.55

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Solution

The fourth proportional to 249,600.60, 374,400.90 and 91,808.55 is: 137,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,600.60 : 374,400.90 = 91,808.55 : x
  2. Step 2: Convert to fraction form
    249,600.60/374,400.90 = 91,808.55/x
  3. Step 3: Cross multiply
    249,600.60x = 374,400.90 × 91,808.55
  4. Step 4: Simplify right side
    249,600.60x = 34,373,203,747.70
  5. Step 5: Solve for x
    x = 34,373,203,747.70/249,600.60
  6. Step 6: Final answer
    x = 137,712.83

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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.