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Finding the Fourth Proportional to 73,100.70, 109,780.65 and 56,501.10

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Solution

The fourth proportional to 73,100.70, 109,780.65 and 56,501.10 is: 84,851.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,100.70 : 109,780.65 = 56,501.10 : x
  2. Step 2: Convert to fraction form
    73,100.70/109,780.65 = 56,501.10/x
  3. Step 3: Cross multiply
    73,100.70x = 109,780.65 × 56,501.10
  4. Step 4: Simplify right side
    73,100.70x = 6,202,727,483.72
  5. Step 5: Solve for x
    x = 6,202,727,483.72/73,100.70
  6. Step 6: Final answer
    x = 84,851.82

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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.