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Finding the Fourth Proportional to 121,600.76, 182,419.42 and 42,701.10

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Solution

The fourth proportional to 121,600.76, 182,419.42 and 42,701.10 is: 64,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,600.76 : 182,419.42 = 42,701.10 : x
  2. Step 2: Convert to fraction form
    121,600.76/182,419.42 = 42,701.10/x
  3. Step 3: Cross multiply
    121,600.76x = 182,419.42 × 42,701.10
  4. Step 4: Simplify right side
    121,600.76x = 7,789,509,895.36
  5. Step 5: Solve for x
    x = 7,789,509,895.36/121,600.76
  6. Step 6: Final answer
    x = 64,058.07

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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.