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Finding the Fourth Proportional to 124,465.80, 187,371.39 and 113,443.32

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Solution

The fourth proportional to 124,465.80, 187,371.39 and 113,443.32 is: 170,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,465.80 : 187,371.39 = 113,443.32 : x
  2. Step 2: Convert to fraction form
    124,465.80/187,371.39 = 113,443.32/x
  3. Step 3: Cross multiply
    124,465.80x = 187,371.39 × 113,443.32
  4. Step 4: Simplify right side
    124,465.80x = 21,256,032,554.61
  5. Step 5: Solve for x
    x = 21,256,032,554.61/124,465.80
  6. Step 6: Final answer
    x = 170,778.10

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.