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Finding the Fourth Proportional to 70,550.18, 97,360.02 and 38,718.39

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Solution

The fourth proportional to 70,550.18, 97,360.02 and 38,718.39 is: 53,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,550.18 : 97,360.02 = 38,718.39 : x
  2. Step 2: Convert to fraction form
    70,550.18/97,360.02 = 38,718.39/x
  3. Step 3: Cross multiply
    70,550.18x = 97,360.02 × 38,718.39
  4. Step 4: Simplify right side
    70,550.18x = 3,769,623,224.77
  5. Step 5: Solve for x
    x = 3,769,623,224.77/70,550.18
  6. Step 6: Final answer
    x = 53,431.81

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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.