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Finding the Fourth Proportional to 145,522.65, 218,329.53 and 92,545

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Solution

The fourth proportional to 145,522.65, 218,329.53 and 92,545 is: 138,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,522.65 : 218,329.53 = 92,545 : x
  2. Step 2: Convert to fraction form
    145,522.65/218,329.53 = 92,545/x
  3. Step 3: Cross multiply
    145,522.65x = 218,329.53 × 92,545
  4. Step 4: Simplify right side
    145,522.65x = 20,205,306,353.85
  5. Step 5: Solve for x
    x = 20,205,306,353.85/145,522.65
  6. Step 6: Final answer
    x = 138,846.47

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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.