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Finding the Fourth Proportional to 424,065.58, 636,129.25 and 157,826.00

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Solution

The fourth proportional to 424,065.58, 636,129.25 and 157,826.00 is: 236,750.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,065.58 : 636,129.25 = 157,826.00 : x
  2. Step 2: Convert to fraction form
    424,065.58/636,129.25 = 157,826.00/x
  3. Step 3: Cross multiply
    424,065.58x = 636,129.25 × 157,826.00
  4. Step 4: Simplify right side
    424,065.58x = 100,397,736,206.26
  5. Step 5: Solve for x
    x = 100,397,736,206.26/424,065.58
  6. Step 6: Final answer
    x = 236,750.50

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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.