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Finding the Fourth Proportional to 247,081.61, 340,963.48 and 133,901.93

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Solution

The fourth proportional to 247,081.61, 340,963.48 and 133,901.93 is: 184,779.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,081.61 : 340,963.48 = 133,901.93 : x
  2. Step 2: Convert to fraction form
    247,081.61/340,963.48 = 133,901.93/x
  3. Step 3: Cross multiply
    247,081.61x = 340,963.48 × 133,901.93
  4. Step 4: Simplify right side
    247,081.61x = 45,655,668,031.52
  5. Step 5: Solve for x
    x = 45,655,668,031.52/247,081.61
  6. Step 6: Final answer
    x = 184,779.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.