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Finding the Fourth Proportional to 103,673.48, 155,509.20 and 47,497.65

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Solution

The fourth proportional to 103,673.48, 155,509.20 and 47,497.65 is: 71,246.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,673.48 : 155,509.20 = 47,497.65 : x
  2. Step 2: Convert to fraction form
    103,673.48/155,509.20 = 47,497.65/x
  3. Step 3: Cross multiply
    103,673.48x = 155,509.20 × 47,497.65
  4. Step 4: Simplify right side
    103,673.48x = 7,386,321,553.38
  5. Step 5: Solve for x
    x = 7,386,321,553.38/103,673.48
  6. Step 6: Final answer
    x = 71,246.01

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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.