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Finding the Fourth Proportional to 103,527.18, 155,136.51 and 53,540.51

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Solution

The fourth proportional to 103,527.18, 155,136.51 and 53,540.51 is: 80,230.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,527.18 : 155,136.51 = 53,540.51 : x
  2. Step 2: Convert to fraction form
    103,527.18/155,136.51 = 53,540.51/x
  3. Step 3: Cross multiply
    103,527.18x = 155,136.51 × 53,540.51
  4. Step 4: Simplify right side
    103,527.18x = 8,306,087,089.34
  5. Step 5: Solve for x
    x = 8,306,087,089.34/103,527.18
  6. Step 6: Final answer
    x = 80,230.98

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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.