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Finding the Fourth Proportional to 119,079.76, 164,321.04 and 65,356.24

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Solution

The fourth proportional to 119,079.76, 164,321.04 and 65,356.24 is: 90,186.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,079.76 : 164,321.04 = 65,356.24 : x
  2. Step 2: Convert to fraction form
    119,079.76/164,321.04 = 65,356.24/x
  3. Step 3: Cross multiply
    119,079.76x = 164,321.04 × 65,356.24
  4. Step 4: Simplify right side
    119,079.76x = 10,739,405,327.29
  5. Step 5: Solve for x
    x = 10,739,405,327.29/119,079.76
  6. Step 6: Final answer
    x = 90,186.66

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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.