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Finding the Fourth Proportional to 108,580.91, 162,128.69 and 97,263.18

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Solution

The fourth proportional to 108,580.91, 162,128.69 and 97,263.18 is: 145,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,580.91 : 162,128.69 = 97,263.18 : x
  2. Step 2: Convert to fraction form
    108,580.91/162,128.69 = 97,263.18/x
  3. Step 3: Cross multiply
    108,580.91x = 162,128.69 × 97,263.18
  4. Step 4: Simplify right side
    108,580.91x = 15,769,151,837.06
  5. Step 5: Solve for x
    x = 15,769,151,837.06/108,580.91
  6. Step 6: Final answer
    x = 145,229.51

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.