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Finding the Fourth Proportional to 125,706.12, 173,464.14 and 74,015.04

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Solution

The fourth proportional to 125,706.12, 173,464.14 and 74,015.04 is: 102,134.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,706.12 : 173,464.14 = 74,015.04 : x
  2. Step 2: Convert to fraction form
    125,706.12/173,464.14 = 74,015.04/x
  3. Step 3: Cross multiply
    125,706.12x = 173,464.14 × 74,015.04
  4. Step 4: Simplify right side
    125,706.12x = 12,838,955,260.67
  5. Step 5: Solve for x
    x = 12,838,955,260.67/125,706.12
  6. Step 6: Final answer
    x = 102,134.69

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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.