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Finding the Fourth Proportional to 112,582, 155,363.77 and 61,595.34

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Solution

The fourth proportional to 112,582, 155,363.77 and 61,595.34 is: 85,001.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,582 : 155,363.77 = 61,595.34 : x
  2. Step 2: Convert to fraction form
    112,582/155,363.77 = 61,595.34/x
  3. Step 3: Cross multiply
    112,582x = 155,363.77 × 61,595.34
  4. Step 4: Simplify right side
    112,582x = 9,569,684,236.83
  5. Step 5: Solve for x
    x = 9,569,684,236.83/112,582
  6. Step 6: Final answer
    x = 85,001.90

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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.