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Finding the Fourth Proportional to 230,908.40, 346,411.20 and 97,720.10

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Solution

The fourth proportional to 230,908.40, 346,411.20 and 97,720.10 is: 146,600.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,908.40 : 346,411.20 = 97,720.10 : x
  2. Step 2: Convert to fraction form
    230,908.40/346,411.20 = 97,720.10/x
  3. Step 3: Cross multiply
    230,908.40x = 346,411.20 × 97,720.10
  4. Step 4: Simplify right side
    230,908.40x = 33,851,337,105.12
  5. Step 5: Solve for x
    x = 33,851,337,105.12/230,908.40
  6. Step 6: Final answer
    x = 146,600.72

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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.