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Finding the Fourth Proportional to 194,612.60, 291,918.90 and 185,427.20

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Solution

The fourth proportional to 194,612.60, 291,918.90 and 185,427.20 is: 278,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,612.60 : 291,918.90 = 185,427.20 : x
  2. Step 2: Convert to fraction form
    194,612.60/291,918.90 = 185,427.20/x
  3. Step 3: Cross multiply
    194,612.60x = 291,918.90 × 185,427.20
  4. Step 4: Simplify right side
    194,612.60x = 54,129,704,254.08
  5. Step 5: Solve for x
    x = 54,129,704,254.08/194,612.60
  6. Step 6: Final answer
    x = 278,140.80

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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.