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Finding the Fourth Proportional to 101,688.99, 140,335.95 and 58,652.47

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Solution

The fourth proportional to 101,688.99, 140,335.95 and 58,652.47 is: 80,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,688.99 : 140,335.95 = 58,652.47 : x
  2. Step 2: Convert to fraction form
    101,688.99/140,335.95 = 58,652.47/x
  3. Step 3: Cross multiply
    101,688.99x = 140,335.95 × 58,652.47
  4. Step 4: Simplify right side
    101,688.99x = 8,231,050,097.30
  5. Step 5: Solve for x
    x = 8,231,050,097.30/101,688.99
  6. Step 6: Final answer
    x = 80,943.38

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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.