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Finding the Fourth Proportional to 144,363.48, 216,487.86 and 55,567.80

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Solution

The fourth proportional to 144,363.48, 216,487.86 and 55,567.80 is: 83,329.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,363.48 : 216,487.86 = 55,567.80 : x
  2. Step 2: Convert to fraction form
    144,363.48/216,487.86 = 55,567.80/x
  3. Step 3: Cross multiply
    144,363.48x = 216,487.86 × 55,567.80
  4. Step 4: Simplify right side
    144,363.48x = 12,029,754,106.91
  5. Step 5: Solve for x
    x = 12,029,754,106.91/144,363.48
  6. Step 6: Final answer
    x = 83,329.62

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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.