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Finding the Fourth Proportional to 249,755.60, 374,503.80 and 91,902.80

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Solution

The fourth proportional to 249,755.60, 374,503.80 and 91,902.80 is: 137,806.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,755.60 : 374,503.80 = 91,902.80 : x
  2. Step 2: Convert to fraction form
    249,755.60/374,503.80 = 91,902.80/x
  3. Step 3: Cross multiply
    249,755.60x = 374,503.80 × 91,902.80
  4. Step 4: Simplify right side
    249,755.60x = 34,417,947,830.64
  5. Step 5: Solve for x
    x = 34,417,947,830.64/249,755.60
  6. Step 6: Final answer
    x = 137,806.51

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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.