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Finding the Fourth Proportional to 75,294.69, 112,962.69 and 61,219.73

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Solution

The fourth proportional to 75,294.69, 112,962.69 and 61,219.73 is: 91,846.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,294.69 : 112,962.69 = 61,219.73 : x
  2. Step 2: Convert to fraction form
    75,294.69/112,962.69 = 61,219.73/x
  3. Step 3: Cross multiply
    75,294.69x = 112,962.69 × 61,219.73
  4. Step 4: Simplify right side
    75,294.69x = 6,915,545,381.87
  5. Step 5: Solve for x
    x = 6,915,545,381.87/75,294.69
  6. Step 6: Final answer
    x = 91,846.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.