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Finding the Fourth Proportional to 84,699.95, 127,119.78 and 42,592.01

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Solution

The fourth proportional to 84,699.95, 127,119.78 and 42,592.01 is: 63,923.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,699.95 : 127,119.78 = 42,592.01 : x
  2. Step 2: Convert to fraction form
    84,699.95/127,119.78 = 42,592.01/x
  3. Step 3: Cross multiply
    84,699.95x = 127,119.78 × 42,592.01
  4. Step 4: Simplify right side
    84,699.95x = 5,414,286,305.36
  5. Step 5: Solve for x
    x = 5,414,286,305.36/84,699.95
  6. Step 6: Final answer
    x = 63,923.14

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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.