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Finding the Fourth Proportional to 75,010.60, 112,386.30 and 48,701.80

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Solution

The fourth proportional to 75,010.60, 112,386.30 and 48,701.80 is: 72,968.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,010.60 : 112,386.30 = 48,701.80 : x
  2. Step 2: Convert to fraction form
    75,010.60/112,386.30 = 48,701.80/x
  3. Step 3: Cross multiply
    75,010.60x = 112,386.30 × 48,701.80
  4. Step 4: Simplify right side
    75,010.60x = 5,473,415,105.34
  5. Step 5: Solve for x
    x = 5,473,415,105.34/75,010.60
  6. Step 6: Final answer
    x = 72,968.56

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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.