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Finding the Fourth Proportional to 75,994.80, 104,869.56 and 42,001.53

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Solution

The fourth proportional to 75,994.80, 104,869.56 and 42,001.53 is: 57,960.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,994.80 : 104,869.56 = 42,001.53 : x
  2. Step 2: Convert to fraction form
    75,994.80/104,869.56 = 42,001.53/x
  3. Step 3: Cross multiply
    75,994.80x = 104,869.56 × 42,001.53
  4. Step 4: Simplify right side
    75,994.80x = 4,404,681,970.43
  5. Step 5: Solve for x
    x = 4,404,681,970.43/75,994.80
  6. Step 6: Final answer
    x = 57,960.31

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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.