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Finding the Fourth Proportional to 70,643.57, 97,393.86 and 60,528.69

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Solution

The fourth proportional to 70,643.57, 97,393.86 and 60,528.69 is: 83,448.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,643.57 : 97,393.86 = 60,528.69 : x
  2. Step 2: Convert to fraction form
    70,643.57/97,393.86 = 60,528.69/x
  3. Step 3: Cross multiply
    70,643.57x = 97,393.86 × 60,528.69
  4. Step 4: Simplify right side
    70,643.57x = 5,895,122,759.84
  5. Step 5: Solve for x
    x = 5,895,122,759.84/70,643.57
  6. Step 6: Final answer
    x = 83,448.83

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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.