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Finding the Fourth Proportional to 138,168.08, 207,060.16 and 63,100.52

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Solution

The fourth proportional to 138,168.08, 207,060.16 and 63,100.52 is: 94,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,168.08 : 207,060.16 = 63,100.52 : x
  2. Step 2: Convert to fraction form
    138,168.08/207,060.16 = 63,100.52/x
  3. Step 3: Cross multiply
    138,168.08x = 207,060.16 × 63,100.52
  4. Step 4: Simplify right side
    138,168.08x = 13,065,603,767.28
  5. Step 5: Solve for x
    x = 13,065,603,767.28/138,168.08
  6. Step 6: Final answer
    x = 94,563.11

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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.