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Finding the Fourth Proportional to 108,389.84, 162,473.16 and 61,543.76

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Solution

The fourth proportional to 108,389.84, 162,473.16 and 61,543.76 is: 92,252.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,389.84 : 162,473.16 = 61,543.76 : x
  2. Step 2: Convert to fraction form
    108,389.84/162,473.16 = 61,543.76/x
  3. Step 3: Cross multiply
    108,389.84x = 162,473.16 × 61,543.76
  4. Step 4: Simplify right side
    108,389.84x = 9,999,209,165.48
  5. Step 5: Solve for x
    x = 9,999,209,165.48/108,389.84
  6. Step 6: Final answer
    x = 92,252.27

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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.