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Finding the Fourth Proportional to 70,408, 97,163.10 and 38,577.04

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Solution

The fourth proportional to 70,408, 97,163.10 and 38,577.04 is: 53,236.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,408 : 97,163.10 = 38,577.04 : x
  2. Step 2: Convert to fraction form
    70,408/97,163.10 = 38,577.04/x
  3. Step 3: Cross multiply
    70,408x = 97,163.10 × 38,577.04
  4. Step 4: Simplify right side
    70,408x = 3,748,264,795.22
  5. Step 5: Solve for x
    x = 3,748,264,795.22/70,408
  6. Step 6: Final answer
    x = 53,236.35

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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.