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Finding the Fourth Proportional to 378,031.40, 567,047.10 and 168,079.40

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Solution

The fourth proportional to 378,031.40, 567,047.10 and 168,079.40 is: 252,119.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,031.40 : 567,047.10 = 168,079.40 : x
  2. Step 2: Convert to fraction form
    378,031.40/567,047.10 = 168,079.40/x
  3. Step 3: Cross multiply
    378,031.40x = 567,047.10 × 168,079.40
  4. Step 4: Simplify right side
    378,031.40x = 95,308,936,339.74
  5. Step 5: Solve for x
    x = 95,308,936,339.74/378,031.40
  6. Step 6: Final answer
    x = 252,119.10

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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.