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Finding the Fourth Proportional to 99,360.66, 137,048.28 and 67,474.20

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Solution

The fourth proportional to 99,360.66, 137,048.28 and 67,474.20 is: 93,067.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,360.66 : 137,048.28 = 67,474.20 : x
  2. Step 2: Convert to fraction form
    99,360.66/137,048.28 = 67,474.20/x
  3. Step 3: Cross multiply
    99,360.66x = 137,048.28 × 67,474.20
  4. Step 4: Simplify right side
    99,360.66x = 9,247,223,054.38
  5. Step 5: Solve for x
    x = 9,247,223,054.38/99,360.66
  6. Step 6: Final answer
    x = 93,067.25

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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.