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Finding the Fourth Proportional to 103,866.39, 155,820.55 and 32,800.13

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Solution

The fourth proportional to 103,866.39, 155,820.55 and 32,800.13 is: 49,206.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,866.39 : 155,820.55 = 32,800.13 : x
  2. Step 2: Convert to fraction form
    103,866.39/155,820.55 = 32,800.13/x
  3. Step 3: Cross multiply
    103,866.39x = 155,820.55 × 32,800.13
  4. Step 4: Simplify right side
    103,866.39x = 5,110,934,132.67
  5. Step 5: Solve for x
    x = 5,110,934,132.67/103,866.39
  6. Step 6: Final answer
    x = 49,206.81

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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.