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Finding the Fourth Proportional to 134,170.66, 185,013.66 and 112,645.58

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Solution

The fourth proportional to 134,170.66, 185,013.66 and 112,645.58 is: 155,331.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,170.66 : 185,013.66 = 112,645.58 : x
  2. Step 2: Convert to fraction form
    134,170.66/185,013.66 = 112,645.58/x
  3. Step 3: Cross multiply
    134,170.66x = 185,013.66 × 112,645.58
  4. Step 4: Simplify right side
    134,170.66x = 20,840,971,038.62
  5. Step 5: Solve for x
    x = 20,840,971,038.62/134,170.66
  6. Step 6: Final answer
    x = 155,331.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.