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Finding the Fourth Proportional to 119,987.92, 179,981.88 and 46,064.08

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Solution

The fourth proportional to 119,987.92, 179,981.88 and 46,064.08 is: 69,096.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,987.92 : 179,981.88 = 46,064.08 : x
  2. Step 2: Convert to fraction form
    119,987.92/179,981.88 = 46,064.08/x
  3. Step 3: Cross multiply
    119,987.92x = 179,981.88 × 46,064.08
  4. Step 4: Simplify right side
    119,987.92x = 8,290,699,718.87
  5. Step 5: Solve for x
    x = 8,290,699,718.87/119,987.92
  6. Step 6: Final answer
    x = 69,096.12

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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.