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Finding the Fourth Proportional to 191,439.84, 287,200.65 and 58,330.71

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Solution

The fourth proportional to 191,439.84, 287,200.65 and 58,330.71 is: 87,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,439.84 : 287,200.65 = 58,330.71 : x
  2. Step 2: Convert to fraction form
    191,439.84/287,200.65 = 58,330.71/x
  3. Step 3: Cross multiply
    191,439.84x = 287,200.65 × 58,330.71
  4. Step 4: Simplify right side
    191,439.84x = 16,752,617,826.96
  5. Step 5: Solve for x
    x = 16,752,617,826.96/191,439.84
  6. Step 6: Final answer
    x = 87,508.52

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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.