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Finding the Fourth Proportional to 191,269.38, 286,798.74 and 78,924.06

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Solution

The fourth proportional to 191,269.38, 286,798.74 and 78,924.06 is: 118,342.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,269.38 : 286,798.74 = 78,924.06 : x
  2. Step 2: Convert to fraction form
    191,269.38/286,798.74 = 78,924.06/x
  3. Step 3: Cross multiply
    191,269.38x = 286,798.74 × 78,924.06
  4. Step 4: Simplify right side
    191,269.38x = 22,635,320,963.68
  5. Step 5: Solve for x
    x = 22,635,320,963.68/191,269.38
  6. Step 6: Final answer
    x = 118,342.63

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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.