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Finding the Fourth Proportional to 103,636.35, 155,545.65 and 61,463.70

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Solution

The fourth proportional to 103,636.35, 155,545.65 and 61,463.70 is: 92,249.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,636.35 : 155,545.65 = 61,463.70 : x
  2. Step 2: Convert to fraction form
    103,636.35/155,545.65 = 61,463.70/x
  3. Step 3: Cross multiply
    103,636.35x = 155,545.65 × 61,463.70
  4. Step 4: Simplify right side
    103,636.35x = 9,560,411,167.91
  5. Step 5: Solve for x
    x = 9,560,411,167.91/103,636.35
  6. Step 6: Final answer
    x = 92,249.59

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1.5x scale

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.