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Finding the Fourth Proportional to 103,674.98, 155,511.45 and 47,499.16

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Solution

The fourth proportional to 103,674.98, 155,511.45 and 47,499.16 is: 71,248.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,674.98 : 155,511.45 = 47,499.16 : x
  2. Step 2: Convert to fraction form
    103,674.98/155,511.45 = 47,499.16/x
  3. Step 3: Cross multiply
    103,674.98x = 155,511.45 × 47,499.16
  4. Step 4: Simplify right side
    103,674.98x = 7,386,663,245.38
  5. Step 5: Solve for x
    x = 7,386,663,245.38/103,674.98
  6. Step 6: Final answer
    x = 71,248.27

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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.