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Finding the Fourth Proportional to 78,901.50, 118,372.77 and 23,497.50

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Solution

The fourth proportional to 78,901.50, 118,372.77 and 23,497.50 is: 35,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,901.50 : 118,372.77 = 23,497.50 : x
  2. Step 2: Convert to fraction form
    78,901.50/118,372.77 = 23,497.50/x
  3. Step 3: Cross multiply
    78,901.50x = 118,372.77 × 23,497.50
  4. Step 4: Simplify right side
    78,901.50x = 2,781,464,163.08
  5. Step 5: Solve for x
    x = 2,781,464,163.08/78,901.50
  6. Step 6: Final answer
    x = 35,252.36

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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.