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Finding the Fourth Proportional to 123,599.70, 185,356.35 and 64,415.70

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Solution

The fourth proportional to 123,599.70, 185,356.35 and 64,415.70 is: 96,601.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,599.70 : 185,356.35 = 64,415.70 : x
  2. Step 2: Convert to fraction form
    123,599.70/185,356.35 = 64,415.70/x
  3. Step 3: Cross multiply
    123,599.70x = 185,356.35 × 64,415.70
  4. Step 4: Simplify right side
    123,599.70x = 11,939,859,034.70
  5. Step 5: Solve for x
    x = 11,939,859,034.70/123,599.70
  6. Step 6: Final answer
    x = 96,601.04

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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.