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Finding the Fourth Proportional to 92,759.69, 128,008.41 and 52,472.59

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Solution

The fourth proportional to 92,759.69, 128,008.41 and 52,472.59 is: 72,412.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,759.69 : 128,008.41 = 52,472.59 : x
  2. Step 2: Convert to fraction form
    92,759.69/128,008.41 = 52,472.59/x
  3. Step 3: Cross multiply
    92,759.69x = 128,008.41 × 52,472.59
  4. Step 4: Simplify right side
    92,759.69x = 6,716,931,912.08
  5. Step 5: Solve for x
    x = 6,716,931,912.08/92,759.69
  6. Step 6: Final answer
    x = 72,412.19

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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.