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Finding the Fourth Proportional to 119,849.60, 179,774.40 and 112,462.40

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Solution

The fourth proportional to 119,849.60, 179,774.40 and 112,462.40 is: 168,693.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,849.60 : 179,774.40 = 112,462.40 : x
  2. Step 2: Convert to fraction form
    119,849.60/179,774.40 = 112,462.40/x
  3. Step 3: Cross multiply
    119,849.60x = 179,774.40 × 112,462.40
  4. Step 4: Simplify right side
    119,849.60x = 20,217,860,482.56
  5. Step 5: Solve for x
    x = 20,217,860,482.56/119,849.60
  6. Step 6: Final answer
    x = 168,693.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.