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Finding the Fourth Proportional to 125,675.35, 173,405.80 and 74,706.10

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Solution

The fourth proportional to 125,675.35, 173,405.80 and 74,706.10 is: 103,078.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,675.35 : 173,405.80 = 74,706.10 : x
  2. Step 2: Convert to fraction form
    125,675.35/173,405.80 = 74,706.10/x
  3. Step 3: Cross multiply
    125,675.35x = 173,405.80 × 74,706.10
  4. Step 4: Simplify right side
    125,675.35x = 12,954,471,035.38
  5. Step 5: Solve for x
    x = 12,954,471,035.38/125,675.35
  6. Step 6: Final answer
    x = 103,078.85

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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.