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Finding the Fourth Proportional to 108,536.71, 162,985.49 and 73,225.20

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Solution

The fourth proportional to 108,536.71, 162,985.49 and 73,225.20 is: 109,959.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,536.71 : 162,985.49 = 73,225.20 : x
  2. Step 2: Convert to fraction form
    108,536.71/162,985.49 = 73,225.20/x
  3. Step 3: Cross multiply
    108,536.71x = 162,985.49 × 73,225.20
  4. Step 4: Simplify right side
    108,536.71x = 11,934,645,598.76
  5. Step 5: Solve for x
    x = 11,934,645,598.76/108,536.71
  6. Step 6: Final answer
    x = 109,959.53

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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.