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Finding the Fourth Proportional to 112,371, 155,072 and 62,073.24

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Solution

The fourth proportional to 112,371, 155,072 and 62,073.24 is: 85,661.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,371 : 155,072 = 62,073.24 : x
  2. Step 2: Convert to fraction form
    112,371/155,072 = 62,073.24/x
  3. Step 3: Cross multiply
    112,371x = 155,072 × 62,073.24
  4. Step 4: Simplify right side
    112,371x = 9,625,821,473.28
  5. Step 5: Solve for x
    x = 9,625,821,473.28/112,371
  6. Step 6: Final answer
    x = 85,661.08

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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.