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Finding the Fourth Proportional to 75,469.70, 104,254.48 and 71,483.82

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Solution

The fourth proportional to 75,469.70, 104,254.48 and 71,483.82 is: 98,748.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,469.70 : 104,254.48 = 71,483.82 : x
  2. Step 2: Convert to fraction form
    75,469.70/104,254.48 = 71,483.82/x
  3. Step 3: Cross multiply
    75,469.70x = 104,254.48 × 71,483.82
  4. Step 4: Simplify right side
    75,469.70x = 7,452,508,482.51
  5. Step 5: Solve for x
    x = 7,452,508,482.51/75,469.70
  6. Step 6: Final answer
    x = 98,748.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.