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Finding the Fourth Proportional to 112,588, 155,371.44 and 62,290.24

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Solution

The fourth proportional to 112,588, 155,371.44 and 62,290.24 is: 85,960.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,588 : 155,371.44 = 62,290.24 : x
  2. Step 2: Convert to fraction form
    112,588/155,371.44 = 62,290.24/x
  3. Step 3: Cross multiply
    112,588x = 155,371.44 × 62,290.24
  4. Step 4: Simplify right side
    112,588x = 9,678,124,286.75
  5. Step 5: Solve for x
    x = 9,678,124,286.75/112,588
  6. Step 6: Final answer
    x = 85,960.53

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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.