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Finding the Fourth Proportional to 97,715.99, 134,786.64 and 75,020.39

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Solution

The fourth proportional to 97,715.99, 134,786.64 and 75,020.39 is: 103,480.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,715.99 : 134,786.64 = 75,020.39 : x
  2. Step 2: Convert to fraction form
    97,715.99/134,786.64 = 75,020.39/x
  3. Step 3: Cross multiply
    97,715.99x = 134,786.64 × 75,020.39
  4. Step 4: Simplify right side
    97,715.99x = 10,111,745,625.66
  5. Step 5: Solve for x
    x = 10,111,745,625.66/97,715.99
  6. Step 6: Final answer
    x = 103,480.98

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1.5x scale

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.