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Finding the Fourth Proportional to 70,335.50, 97,108.26 and 62,768.84

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Solution

The fourth proportional to 70,335.50, 97,108.26 and 62,768.84 is: 86,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,335.50 : 97,108.26 = 62,768.84 : x
  2. Step 2: Convert to fraction form
    70,335.50/97,108.26 = 62,768.84/x
  3. Step 3: Cross multiply
    70,335.50x = 97,108.26 × 62,768.84
  4. Step 4: Simplify right side
    70,335.50x = 6,095,372,834.62
  5. Step 5: Solve for x
    x = 6,095,372,834.62/70,335.50
  6. Step 6: Final answer
    x = 86,661.40

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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.