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Finding the Fourth Proportional to 108,672.40, 163,020.78 and 97,510.48

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Solution

The fourth proportional to 108,672.40, 163,020.78 and 97,510.48 is: 146,276.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,672.40 : 163,020.78 = 97,510.48 : x
  2. Step 2: Convert to fraction form
    108,672.40/163,020.78 = 97,510.48/x
  3. Step 3: Cross multiply
    108,672.40x = 163,020.78 × 97,510.48
  4. Step 4: Simplify right side
    108,672.40x = 15,896,234,507.77
  5. Step 5: Solve for x
    x = 15,896,234,507.77/108,672.40
  6. Step 6: Final answer
    x = 146,276.65

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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.