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Finding the Fourth Proportional to 191,118.87, 286,691.81 and 58,009.95

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Solution

The fourth proportional to 191,118.87, 286,691.81 and 58,009.95 is: 87,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,118.87 : 286,691.81 = 58,009.95 : x
  2. Step 2: Convert to fraction form
    191,118.87/286,691.81 = 58,009.95/x
  3. Step 3: Cross multiply
    191,118.87x = 286,691.81 × 58,009.95
  4. Step 4: Simplify right side
    191,118.87x = 16,630,977,273.46
  5. Step 5: Solve for x
    x = 16,630,977,273.46/191,118.87
  6. Step 6: Final answer
    x = 87,019.02

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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.