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Finding the Fourth Proportional to 118,014.66, 162,808.44 and 79,760.28

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Solution

The fourth proportional to 118,014.66, 162,808.44 and 79,760.28 is: 110,034.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,014.66 : 162,808.44 = 79,760.28 : x
  2. Step 2: Convert to fraction form
    118,014.66/162,808.44 = 79,760.28/x
  3. Step 3: Cross multiply
    118,014.66x = 162,808.44 × 79,760.28
  4. Step 4: Simplify right side
    118,014.66x = 12,985,646,760.76
  5. Step 5: Solve for x
    x = 12,985,646,760.76/118,014.66
  6. Step 6: Final answer
    x = 110,034.18

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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.