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Finding the Fourth Proportional to 191,800.91, 287,690.89 and 58,681.18

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Solution

The fourth proportional to 191,800.91, 287,690.89 and 58,681.18 is: 88,018.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,800.91 : 287,690.89 = 58,681.18 : x
  2. Step 2: Convert to fraction form
    191,800.91/287,690.89 = 58,681.18/x
  3. Step 3: Cross multiply
    191,800.91x = 287,690.89 × 58,681.18
  4. Step 4: Simplify right side
    191,800.91x = 16,882,040,900.45
  5. Step 5: Solve for x
    x = 16,882,040,900.45/191,800.91
  6. Step 6: Final answer
    x = 88,018.57

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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.