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Finding the Fourth Proportional to 83,873.13, 115,745.19 and 45,632.65

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Solution

The fourth proportional to 83,873.13, 115,745.19 and 45,632.65 is: 62,973.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,873.13 : 115,745.19 = 45,632.65 : x
  2. Step 2: Convert to fraction form
    83,873.13/115,745.19 = 45,632.65/x
  3. Step 3: Cross multiply
    83,873.13x = 115,745.19 × 45,632.65
  4. Step 4: Simplify right side
    83,873.13x = 5,281,759,744.45
  5. Step 5: Solve for x
    x = 5,281,759,744.45/83,873.13
  6. Step 6: Final answer
    x = 62,973.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.