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Finding the Fourth Proportional to 66,281.40, 99,276.30 and 58,894.20

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Solution

The fourth proportional to 66,281.40, 99,276.30 and 58,894.20 is: 88,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,281.40 : 99,276.30 = 58,894.20 : x
  2. Step 2: Convert to fraction form
    66,281.40/99,276.30 = 58,894.20/x
  3. Step 3: Cross multiply
    66,281.40x = 99,276.30 × 58,894.20
  4. Step 4: Simplify right side
    66,281.40x = 5,846,798,267.46
  5. Step 5: Solve for x
    x = 5,846,798,267.46/66,281.40
  6. Step 6: Final answer
    x = 88,211.75

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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.