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Finding the Fourth Proportional to 171,412.70, 236,471.01 and 111,002.79

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Solution

The fourth proportional to 171,412.70, 236,471.01 and 111,002.79 is: 153,133.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,412.70 : 236,471.01 = 111,002.79 : x
  2. Step 2: Convert to fraction form
    171,412.70/236,471.01 = 111,002.79/x
  3. Step 3: Cross multiply
    171,412.70x = 236,471.01 × 111,002.79
  4. Step 4: Simplify right side
    171,412.70x = 26,248,941,864.12
  5. Step 5: Solve for x
    x = 26,248,941,864.12/171,412.70
  6. Step 6: Final answer
    x = 153,133.01

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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.