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Finding the Fourth Proportional to 249,362.76, 374,043.33 and 71,870.70

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Solution

The fourth proportional to 249,362.76, 374,043.33 and 71,870.70 is: 107,805.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,362.76 : 374,043.33 = 71,870.70 : x
  2. Step 2: Convert to fraction form
    249,362.76/374,043.33 = 71,870.70/x
  3. Step 3: Cross multiply
    249,362.76x = 374,043.33 × 71,870.70
  4. Step 4: Simplify right side
    249,362.76x = 26,882,755,957.43
  5. Step 5: Solve for x
    x = 26,882,755,957.43/249,362.76
  6. Step 6: Final answer
    x = 107,805.82

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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.