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Finding the Fourth Proportional to 112,465.76, 155,202.60 and 62,164.76

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Solution

The fourth proportional to 112,465.76, 155,202.60 and 62,164.76 is: 85,787.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,465.76 : 155,202.60 = 62,164.76 : x
  2. Step 2: Convert to fraction form
    112,465.76/155,202.60 = 62,164.76/x
  3. Step 3: Cross multiply
    112,465.76x = 155,202.60 × 62,164.76
  4. Step 4: Simplify right side
    112,465.76x = 9,648,132,380.38
  5. Step 5: Solve for x
    x = 9,648,132,380.38/112,465.76
  6. Step 6: Final answer
    x = 85,787.29

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1.5x scale

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.