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Finding the Fourth Proportional to 191,969.16, 287,995.76 and 58,859.81

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Solution

The fourth proportional to 191,969.16, 287,995.76 and 58,859.81 is: 88,302.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,969.16 : 287,995.76 = 58,859.81 : x
  2. Step 2: Convert to fraction form
    191,969.16/287,995.76 = 58,859.81/x
  3. Step 3: Cross multiply
    191,969.16x = 287,995.76 × 58,859.81
  4. Step 4: Simplify right side
    191,969.16x = 16,951,373,980.13
  5. Step 5: Solve for x
    x = 16,951,373,980.13/191,969.16
  6. Step 6: Final answer
    x = 88,302.59

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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.