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Finding the Fourth Proportional to 104,878.50, 144,734.78 and 59,549.28

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Solution

The fourth proportional to 104,878.50, 144,734.78 and 59,549.28 is: 82,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,878.50 : 144,734.78 = 59,549.28 : x
  2. Step 2: Convert to fraction form
    104,878.50/144,734.78 = 59,549.28/x
  3. Step 3: Cross multiply
    104,878.50x = 144,734.78 × 59,549.28
  4. Step 4: Simplify right side
    104,878.50x = 8,618,851,642.21
  5. Step 5: Solve for x
    x = 8,618,851,642.21/104,878.50
  6. Step 6: Final answer
    x = 82,179.39

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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.