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Finding the Fourth Proportional to 357,829.76, 536,713.28 and 121,167.04

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Solution

The fourth proportional to 357,829.76, 536,713.28 and 121,167.04 is: 181,739.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,829.76 : 536,713.28 = 121,167.04 : x
  2. Step 2: Convert to fraction form
    357,829.76/536,713.28 = 121,167.04/x
  3. Step 3: Cross multiply
    357,829.76x = 536,713.28 × 121,167.04
  4. Step 4: Simplify right side
    357,829.76x = 65,031,959,466.29
  5. Step 5: Solve for x
    x = 65,031,959,466.29/357,829.76
  6. Step 6: Final answer
    x = 181,739.94

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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.