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Finding the Fourth Proportional to 191,822.60, 287,708.70 and 58,716.20

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Solution

The fourth proportional to 191,822.60, 287,708.70 and 58,716.20 is: 88,066.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,822.60 : 287,708.70 = 58,716.20 : x
  2. Step 2: Convert to fraction form
    191,822.60/287,708.70 = 58,716.20/x
  3. Step 3: Cross multiply
    191,822.60x = 287,708.70 × 58,716.20
  4. Step 4: Simplify right side
    191,822.60x = 16,893,161,570.94
  5. Step 5: Solve for x
    x = 16,893,161,570.94/191,822.60
  6. Step 6: Final answer
    x = 88,066.59

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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.