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Finding the Fourth Proportional to 108,473.10, 145,972.13 and 108,473.10

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Solution

The fourth proportional to 108,473.10, 145,972.13 and 108,473.10 is: 145,972.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,473.10 : 145,972.13 = 108,473.10 : x
  2. Step 2: Convert to fraction form
    108,473.10/145,972.13 = 108,473.10/x
  3. Step 3: Cross multiply
    108,473.10x = 145,972.13 × 108,473.10
  4. Step 4: Simplify right side
    108,473.10x = 15,834,048,912.34
  5. Step 5: Solve for x
    x = 15,834,048,912.34/108,473.10
  6. Step 6: Final answer
    x = 145,972.13

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.