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Finding the Fourth Proportional to 125,719.12, 173,482.08 and 74,028.04

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Solution

The fourth proportional to 125,719.12, 173,482.08 and 74,028.04 is: 102,152.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,719.12 : 173,482.08 = 74,028.04 : x
  2. Step 2: Convert to fraction form
    125,719.12/173,482.08 = 74,028.04/x
  3. Step 3: Cross multiply
    125,719.12x = 173,482.08 × 74,028.04
  4. Step 4: Simplify right side
    125,719.12x = 12,842,538,357.52
  5. Step 5: Solve for x
    x = 12,842,538,357.52/125,719.12
  6. Step 6: Final answer
    x = 102,152.63

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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.