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Finding the Fourth Proportional to 191,798.48, 287,687.23 and 58,678.73

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Solution

The fourth proportional to 191,798.48, 287,687.23 and 58,678.73 is: 88,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,798.48 : 287,687.23 = 58,678.73 : x
  2. Step 2: Convert to fraction form
    191,798.48/287,687.23 = 58,678.73/x
  3. Step 3: Cross multiply
    191,798.48x = 287,687.23 × 58,678.73
  4. Step 4: Simplify right side
    191,798.48x = 16,881,121,293.62
  5. Step 5: Solve for x
    x = 16,881,121,293.62/191,798.48
  6. Step 6: Final answer
    x = 88,014.89

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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.