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Finding the Fourth Proportional to 119,628.90, 179,443.62 and 112,321.62

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Solution

The fourth proportional to 119,628.90, 179,443.62 and 112,321.62 is: 168,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,628.90 : 179,443.62 = 112,321.62 : x
  2. Step 2: Convert to fraction form
    119,628.90/179,443.62 = 112,321.62/x
  3. Step 3: Cross multiply
    119,628.90x = 179,443.62 × 112,321.62
  4. Step 4: Simplify right side
    119,628.90x = 20,155,398,097.06
  5. Step 5: Solve for x
    x = 20,155,398,097.06/119,628.90
  6. Step 6: Final answer
    x = 168,482.68

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1.5x scale

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.