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Finding the Fourth Proportional to 191,593.71, 287,390.57 and 58,474.67

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Solution

The fourth proportional to 191,593.71, 287,390.57 and 58,474.67 is: 87,712.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,593.71 : 287,390.57 = 58,474.67 : x
  2. Step 2: Convert to fraction form
    191,593.71/287,390.57 = 58,474.67/x
  3. Step 3: Cross multiply
    191,593.71x = 287,390.57 × 58,474.67
  4. Step 4: Simplify right side
    191,593.71x = 16,805,068,741.86
  5. Step 5: Solve for x
    x = 16,805,068,741.86/191,593.71
  6. Step 6: Final answer
    x = 87,712.01

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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.