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Finding the Fourth Proportional to 171,031.40, 236,107.50 and 107,404.28

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Solution

The fourth proportional to 171,031.40, 236,107.50 and 107,404.28 is: 148,270.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,031.40 : 236,107.50 = 107,404.28 : x
  2. Step 2: Convert to fraction form
    171,031.40/236,107.50 = 107,404.28/x
  3. Step 3: Cross multiply
    171,031.40x = 236,107.50 × 107,404.28
  4. Step 4: Simplify right side
    171,031.40x = 25,358,956,040.10
  5. Step 5: Solve for x
    x = 25,358,956,040.10/171,031.40
  6. Step 6: Final answer
    x = 148,270.76

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1.5x scale

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.