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Finding the Fourth Proportional to 66,282.40, 99,277.80 and 58,895.20

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Solution

The fourth proportional to 66,282.40, 99,277.80 and 58,895.20 is: 88,213.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,282.40 : 99,277.80 = 58,895.20 : x
  2. Step 2: Convert to fraction form
    66,282.40/99,277.80 = 58,895.20/x
  3. Step 3: Cross multiply
    66,282.40x = 99,277.80 × 58,895.20
  4. Step 4: Simplify right side
    66,282.40x = 5,846,985,886.56
  5. Step 5: Solve for x
    x = 5,846,985,886.56/66,282.40
  6. Step 6: Final answer
    x = 88,213.25

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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.