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Finding the Fourth Proportional to 117,978.10, 176,637.36 and 63,748.49

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Solution

The fourth proportional to 117,978.10, 176,637.36 and 63,748.49 is: 95,444.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,978.10 : 176,637.36 = 63,748.49 : x
  2. Step 2: Convert to fraction form
    117,978.10/176,637.36 = 63,748.49/x
  3. Step 3: Cross multiply
    117,978.10x = 176,637.36 × 63,748.49
  4. Step 4: Simplify right side
    117,978.10x = 11,260,364,333.46
  5. Step 5: Solve for x
    x = 11,260,364,333.46/117,978.10
  6. Step 6: Final answer
    x = 95,444.53

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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.