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Finding the Fourth Proportional to 288,545.80, 432,300.30 and 247,073.80

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Solution

The fourth proportional to 288,545.80, 432,300.30 and 247,073.80 is: 370,166.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,545.80 : 432,300.30 = 247,073.80 : x
  2. Step 2: Convert to fraction form
    288,545.80/432,300.30 = 247,073.80/x
  3. Step 3: Cross multiply
    288,545.80x = 432,300.30 × 247,073.80
  4. Step 4: Simplify right side
    288,545.80x = 106,810,077,862.14
  5. Step 5: Solve for x
    x = 106,810,077,862.14/288,545.80
  6. Step 6: Final answer
    x = 370,166.81

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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.