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Finding the Fourth Proportional to 249,872.76, 374,809.14 and 72,379.83

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Solution

The fourth proportional to 249,872.76, 374,809.14 and 72,379.83 is: 108,569.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,872.76 : 374,809.14 = 72,379.83 : x
  2. Step 2: Convert to fraction form
    249,872.76/374,809.14 = 72,379.83/x
  3. Step 3: Cross multiply
    249,872.76x = 374,809.14 × 72,379.83
  4. Step 4: Simplify right side
    249,872.76x = 27,128,621,835.65
  5. Step 5: Solve for x
    x = 27,128,621,835.65/249,872.76
  6. Step 6: Final answer
    x = 108,569.75

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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.