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Finding the Fourth Proportional to 191,875.20, 287,813.49 and 58,754.91

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Solution

The fourth proportional to 191,875.20, 287,813.49 and 58,754.91 is: 88,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,875.20 : 287,813.49 = 58,754.91 : x
  2. Step 2: Convert to fraction form
    191,875.20/287,813.49 = 58,754.91/x
  3. Step 3: Cross multiply
    191,875.20x = 287,813.49 × 58,754.91
  4. Step 4: Simplify right side
    191,875.20x = 16,910,455,701.74
  5. Step 5: Solve for x
    x = 16,910,455,701.74/191,875.20
  6. Step 6: Final answer
    x = 88,132.58

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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.