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Finding the Fourth Proportional to 496,715.61, 745,199.17 and 141,730.88

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Solution

The fourth proportional to 496,715.61, 745,199.17 and 141,730.88 is: 212,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,715.61 : 745,199.17 = 141,730.88 : x
  2. Step 2: Convert to fraction form
    496,715.61/745,199.17 = 141,730.88/x
  3. Step 3: Cross multiply
    496,715.61x = 745,199.17 × 141,730.88
  4. Step 4: Simplify right side
    496,715.61x = 105,617,735,648.04
  5. Step 5: Solve for x
    x = 105,617,735,648.04/496,715.61
  6. Step 6: Final answer
    x = 212,632.21

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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.