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Finding the Fourth Proportional to 75,336.88, 103,970.64 and 41,802.88

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Solution

The fourth proportional to 75,336.88, 103,970.64 and 41,802.88 is: 57,691.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,336.88 : 103,970.64 = 41,802.88 : x
  2. Step 2: Convert to fraction form
    75,336.88/103,970.64 = 41,802.88/x
  3. Step 3: Cross multiply
    75,336.88x = 103,970.64 × 41,802.88
  4. Step 4: Simplify right side
    75,336.88x = 4,346,272,187.44
  5. Step 5: Solve for x
    x = 4,346,272,187.44/75,336.88
  6. Step 6: Final answer
    x = 57,691.16

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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.