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Finding the Fourth Proportional to 66,098, 99,127.56 and 19,339.76

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Solution

The fourth proportional to 66,098, 99,127.56 and 19,339.76 is: 29,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,098 : 99,127.56 = 19,339.76 : x
  2. Step 2: Convert to fraction form
    66,098/99,127.56 = 19,339.76/x
  3. Step 3: Cross multiply
    66,098x = 99,127.56 × 19,339.76
  4. Step 4: Simplify right side
    66,098x = 1,917,103,219.79
  5. Step 5: Solve for x
    x = 1,917,103,219.79/66,098
  6. Step 6: Final answer
    x = 29,003.95

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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.