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Finding the Fourth Proportional to 191,812.48, 287,706.72 and 58,682.20

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Solution

The fourth proportional to 191,812.48, 287,706.72 and 58,682.20 is: 88,019.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,812.48 : 287,706.72 = 58,682.20 : x
  2. Step 2: Convert to fraction form
    191,812.48/287,706.72 = 58,682.20/x
  3. Step 3: Cross multiply
    191,812.48x = 287,706.72 × 58,682.20
  4. Step 4: Simplify right side
    191,812.48x = 16,883,263,284.38
  5. Step 5: Solve for x
    x = 16,883,263,284.38/191,812.48
  6. Step 6: Final answer
    x = 88,019.63

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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.