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Finding the Fourth Proportional to 113,894.68, 157,175.40 and 62,906

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Solution

The fourth proportional to 113,894.68, 157,175.40 and 62,906 is: 86,810.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,894.68 : 157,175.40 = 62,906 : x
  2. Step 2: Convert to fraction form
    113,894.68/157,175.40 = 62,906/x
  3. Step 3: Cross multiply
    113,894.68x = 157,175.40 × 62,906
  4. Step 4: Simplify right side
    113,894.68x = 9,887,275,712.40
  5. Step 5: Solve for x
    x = 9,887,275,712.40/113,894.68
  6. Step 6: Final answer
    x = 86,810.69

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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.