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Finding the Fourth Proportional to 67,235.40, 100,853.10 and 59,977.80

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Solution

The fourth proportional to 67,235.40, 100,853.10 and 59,977.80 is: 89,966.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,235.40 : 100,853.10 = 59,977.80 : x
  2. Step 2: Convert to fraction form
    67,235.40/100,853.10 = 59,977.80/x
  3. Step 3: Cross multiply
    67,235.40x = 100,853.10 × 59,977.80
  4. Step 4: Simplify right side
    67,235.40x = 6,048,947,061.18
  5. Step 5: Solve for x
    x = 6,048,947,061.18/67,235.40
  6. Step 6: Final answer
    x = 89,966.70

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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.