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Finding the Fourth Proportional to 174,670.30, 261,832.65 and 85,851.10

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Solution

The fourth proportional to 174,670.30, 261,832.65 and 85,851.10 is: 128,691.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,670.30 : 261,832.65 = 85,851.10 : x
  2. Step 2: Convert to fraction form
    174,670.30/261,832.65 = 85,851.10/x
  3. Step 3: Cross multiply
    174,670.30x = 261,832.65 × 85,851.10
  4. Step 4: Simplify right side
    174,670.30x = 22,478,621,018.42
  5. Step 5: Solve for x
    x = 22,478,621,018.42/174,670.30
  6. Step 6: Final answer
    x = 128,691.72

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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.