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Finding the Fourth Proportional to 101,900.04, 152,800.87 and 42,719.82

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Solution

The fourth proportional to 101,900.04, 152,800.87 and 42,719.82 is: 64,059.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,900.04 : 152,800.87 = 42,719.82 : x
  2. Step 2: Convert to fraction form
    101,900.04/152,800.87 = 42,719.82/x
  3. Step 3: Cross multiply
    101,900.04x = 152,800.87 × 42,719.82
  4. Step 4: Simplify right side
    101,900.04x = 6,527,625,662.24
  5. Step 5: Solve for x
    x = 6,527,625,662.24/101,900.04
  6. Step 6: Final answer
    x = 64,059.11

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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.