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Finding the Fourth Proportional to 101,697, 140,341.86 and 59,263.74

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Solution

The fourth proportional to 101,697, 140,341.86 and 59,263.74 is: 81,783.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,697 : 140,341.86 = 59,263.74 : x
  2. Step 2: Convert to fraction form
    101,697/140,341.86 = 59,263.74/x
  3. Step 3: Cross multiply
    101,697x = 140,341.86 × 59,263.74
  4. Step 4: Simplify right side
    101,697x = 8,317,183,502.16
  5. Step 5: Solve for x
    x = 8,317,183,502.16/101,697
  6. Step 6: Final answer
    x = 81,783.96

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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.