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Finding the Fourth Proportional to 125,460.60, 173,123.94 and 74,464.56

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Solution

The fourth proportional to 125,460.60, 173,123.94 and 74,464.56 is: 102,754.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,460.60 : 173,123.94 = 74,464.56 : x
  2. Step 2: Convert to fraction form
    125,460.60/173,123.94 = 74,464.56/x
  3. Step 3: Cross multiply
    125,460.60x = 173,123.94 × 74,464.56
  4. Step 4: Simplify right side
    125,460.60x = 12,891,598,017.57
  5. Step 5: Solve for x
    x = 12,891,598,017.57/125,460.60
  6. Step 6: Final answer
    x = 102,754.16

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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.