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Finding the Fourth Proportional to 73,130.76, 100,920.45 and 41,301.70

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Solution

The fourth proportional to 73,130.76, 100,920.45 and 41,301.70 is: 56,996.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,130.76 : 100,920.45 = 41,301.70 : x
  2. Step 2: Convert to fraction form
    73,130.76/100,920.45 = 41,301.70/x
  3. Step 3: Cross multiply
    73,130.76x = 100,920.45 × 41,301.70
  4. Step 4: Simplify right side
    73,130.76x = 4,168,186,149.77
  5. Step 5: Solve for x
    x = 4,168,186,149.77/73,130.76
  6. Step 6: Final answer
    x = 56,996.35

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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.