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Finding the Fourth Proportional to 66,100.88, 99,063.80 and 48,488.24

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Solution

The fourth proportional to 66,100.88, 99,063.80 and 48,488.24 is: 72,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,100.88 : 99,063.80 = 48,488.24 : x
  2. Step 2: Convert to fraction form
    66,100.88/99,063.80 = 48,488.24/x
  3. Step 3: Cross multiply
    66,100.88x = 99,063.80 × 48,488.24
  4. Step 4: Simplify right side
    66,100.88x = 4,803,429,309.71
  5. Step 5: Solve for x
    x = 4,803,429,309.71/66,100.88
  6. Step 6: Final answer
    x = 72,668.16

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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.