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Finding the Fourth Proportional to 453,109.74, 679,239.97 and 153,380.58

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Solution

The fourth proportional to 453,109.74, 679,239.97 and 153,380.58 is: 229,927.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,109.74 : 679,239.97 = 153,380.58 : x
  2. Step 2: Convert to fraction form
    453,109.74/679,239.97 = 153,380.58/x
  3. Step 3: Cross multiply
    453,109.74x = 679,239.97 × 153,380.58
  4. Step 4: Simplify right side
    453,109.74x = 104,182,224,364.83
  5. Step 5: Solve for x
    x = 104,182,224,364.83/453,109.74
  6. Step 6: Final answer
    x = 229,927.13

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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.