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Finding the Fourth Proportional to 70,271.40, 97,003.38 and 47,641.38

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Solution

The fourth proportional to 70,271.40, 97,003.38 and 47,641.38 is: 65,764.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,271.40 : 97,003.38 = 47,641.38 : x
  2. Step 2: Convert to fraction form
    70,271.40/97,003.38 = 47,641.38/x
  3. Step 3: Cross multiply
    70,271.40x = 97,003.38 × 47,641.38
  4. Step 4: Simplify right side
    70,271.40x = 4,621,374,887.86
  5. Step 5: Solve for x
    x = 4,621,374,887.86/70,271.40
  6. Step 6: Final answer
    x = 65,764.66

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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.