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Finding the Fourth Proportional to 99,552.88, 137,382.91 and 54,840.88

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Solution

The fourth proportional to 99,552.88, 137,382.91 and 54,840.88 is: 75,680.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,552.88 : 137,382.91 = 54,840.88 : x
  2. Step 2: Convert to fraction form
    99,552.88/137,382.91 = 54,840.88/x
  3. Step 3: Cross multiply
    99,552.88x = 137,382.91 × 54,840.88
  4. Step 4: Simplify right side
    99,552.88x = 7,534,199,681.36
  5. Step 5: Solve for x
    x = 7,534,199,681.36/99,552.88
  6. Step 6: Final answer
    x = 75,680.38

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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.