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Finding the Fourth Proportional to 194,062.80, 291,094.20 and 131,854.80

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Solution

The fourth proportional to 194,062.80, 291,094.20 and 131,854.80 is: 197,782.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,062.80 : 291,094.20 = 131,854.80 : x
  2. Step 2: Convert to fraction form
    194,062.80/291,094.20 = 131,854.80/x
  3. Step 3: Cross multiply
    194,062.80x = 291,094.20 × 131,854.80
  4. Step 4: Simplify right side
    194,062.80x = 38,382,167,522.16
  5. Step 5: Solve for x
    x = 38,382,167,522.16/194,062.80
  6. Step 6: Final answer
    x = 197,782.20

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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.