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Finding the Fourth Proportional to 101,857.01, 140,562.05 and 56,541.56

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Solution

The fourth proportional to 101,857.01, 140,562.05 and 56,541.56 is: 78,027.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,857.01 : 140,562.05 = 56,541.56 : x
  2. Step 2: Convert to fraction form
    101,857.01/140,562.05 = 56,541.56/x
  3. Step 3: Cross multiply
    101,857.01x = 140,562.05 × 56,541.56
  4. Step 4: Simplify right side
    101,857.01x = 7,947,596,598.28
  5. Step 5: Solve for x
    x = 7,947,596,598.28/101,857.01
  6. Step 6: Final answer
    x = 78,027.00

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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.