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Finding the Fourth Proportional to 249,869.88, 374,454.90 and 131,363.64

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Solution

The fourth proportional to 249,869.88, 374,454.90 and 131,363.64 is: 196,861.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,869.88 : 374,454.90 = 131,363.64 : x
  2. Step 2: Convert to fraction form
    249,869.88/374,454.90 = 131,363.64/x
  3. Step 3: Cross multiply
    249,869.88x = 374,454.90 × 131,363.64
  4. Step 4: Simplify right side
    249,869.88x = 49,189,758,679.84
  5. Step 5: Solve for x
    x = 49,189,758,679.84/249,869.88
  6. Step 6: Final answer
    x = 196,861.50

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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.