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Finding the Fourth Proportional to 103,510.10, 155,154.41 and 53,539.89

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Solution

The fourth proportional to 103,510.10, 155,154.41 and 53,539.89 is: 80,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,510.10 : 155,154.41 = 53,539.89 : x
  2. Step 2: Convert to fraction form
    103,510.10/155,154.41 = 53,539.89/x
  3. Step 3: Cross multiply
    103,510.10x = 155,154.41 × 53,539.89
  4. Step 4: Simplify right side
    103,510.10x = 8,306,950,044.41
  5. Step 5: Solve for x
    x = 8,306,950,044.41/103,510.10
  6. Step 6: Final answer
    x = 80,252.56

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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.