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Finding the Fourth Proportional to 75,810.60, 104,616.36 and 42,276.60

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Solution

The fourth proportional to 75,810.60, 104,616.36 and 42,276.60 is: 58,340.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,810.60 : 104,616.36 = 42,276.60 : x
  2. Step 2: Convert to fraction form
    75,810.60/104,616.36 = 42,276.60/x
  3. Step 3: Cross multiply
    75,810.60x = 104,616.36 × 42,276.60
  4. Step 4: Simplify right side
    75,810.60x = 4,422,824,005.18
  5. Step 5: Solve for x
    x = 4,422,824,005.18/75,810.60
  6. Step 6: Final answer
    x = 58,340.44

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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.