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Finding the Fourth Proportional to 453,119.20, 679,657.20 and 153,570.40

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Solution

The fourth proportional to 453,119.20, 679,657.20 and 153,570.40 is: 230,348.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,119.20 : 679,657.20 = 153,570.40 : x
  2. Step 2: Convert to fraction form
    453,119.20/679,657.20 = 153,570.40/x
  3. Step 3: Cross multiply
    453,119.20x = 679,657.20 × 153,570.40
  4. Step 4: Simplify right side
    453,119.20x = 104,375,228,066.88
  5. Step 5: Solve for x
    x = 104,375,228,066.88/453,119.20
  6. Step 6: Final answer
    x = 230,348.28

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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.