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Finding the Fourth Proportional to 104,937.76, 157,410.48 and 42,606.88

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Solution

The fourth proportional to 104,937.76, 157,410.48 and 42,606.88 is: 63,911.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,937.76 : 157,410.48 = 42,606.88 : x
  2. Step 2: Convert to fraction form
    104,937.76/157,410.48 = 42,606.88/x
  3. Step 3: Cross multiply
    104,937.76x = 157,410.48 × 42,606.88
  4. Step 4: Simplify right side
    104,937.76x = 6,706,769,432.10
  5. Step 5: Solve for x
    x = 6,706,769,432.10/104,937.76
  6. Step 6: Final answer
    x = 63,911.88

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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.