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Finding the Fourth Proportional to 112,596, 155,384.46 and 61,613.19

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Solution

The fourth proportional to 112,596, 155,384.46 and 61,613.19 is: 85,027.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,596 : 155,384.46 = 61,613.19 : x
  2. Step 2: Convert to fraction form
    112,596/155,384.46 = 61,613.19/x
  3. Step 3: Cross multiply
    112,596x = 155,384.46 × 61,613.19
  4. Step 4: Simplify right side
    112,596x = 9,573,732,257.03
  5. Step 5: Solve for x
    x = 9,573,732,257.03/112,596
  6. Step 6: Final answer
    x = 85,027.29

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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.