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Finding the Fourth Proportional to 191,840.04, 287,721.18 and 65,411.73

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Solution

The fourth proportional to 191,840.04, 287,721.18 and 65,411.73 is: 98,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,840.04 : 287,721.18 = 65,411.73 : x
  2. Step 2: Convert to fraction form
    191,840.04/287,721.18 = 65,411.73/x
  3. Step 3: Cross multiply
    191,840.04x = 287,721.18 × 65,411.73
  4. Step 4: Simplify right side
    191,840.04x = 18,820,340,141.44
  5. Step 5: Solve for x
    x = 18,820,340,141.44/191,840.04
  6. Step 6: Final answer
    x = 98,104.34

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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.