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Finding the Fourth Proportional to 357,833.76, 536,719.28 and 121,171.04

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Solution

The fourth proportional to 357,833.76, 536,719.28 and 121,171.04 is: 181,745.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,833.76 : 536,719.28 = 121,171.04 : x
  2. Step 2: Convert to fraction form
    357,833.76/536,719.28 = 121,171.04/x
  3. Step 3: Cross multiply
    357,833.76x = 536,719.28 × 121,171.04
  4. Step 4: Simplify right side
    357,833.76x = 65,034,833,345.65
  5. Step 5: Solve for x
    x = 65,034,833,345.65/357,833.76
  6. Step 6: Final answer
    x = 181,745.94

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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.