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Finding the Fourth Proportional to 249,872.77, 374,809.14 and 72,379.84

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Solution

The fourth proportional to 249,872.77, 374,809.14 and 72,379.84 is: 108,569.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,872.77 : 374,809.14 = 72,379.84 : x
  2. Step 2: Convert to fraction form
    249,872.77/374,809.14 = 72,379.84/x
  3. Step 3: Cross multiply
    249,872.77x = 374,809.14 × 72,379.84
  4. Step 4: Simplify right side
    249,872.77x = 27,128,625,583.74
  5. Step 5: Solve for x
    x = 27,128,625,583.74/249,872.77
  6. Step 6: Final answer
    x = 108,569.76

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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.