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Finding the Fourth Proportional to 112,292.29, 154,956.72 and 61,294.87

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Solution

The fourth proportional to 112,292.29, 154,956.72 and 61,294.87 is: 84,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,292.29 : 154,956.72 = 61,294.87 : x
  2. Step 2: Convert to fraction form
    112,292.29/154,956.72 = 61,294.87/x
  3. Step 3: Cross multiply
    112,292.29x = 154,956.72 × 61,294.87
  4. Step 4: Simplify right side
    112,292.29x = 9,498,052,008.03
  5. Step 5: Solve for x
    x = 9,498,052,008.03/112,292.29
  6. Step 6: Final answer
    x = 84,583.30

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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.