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Finding the Fourth Proportional to 119,462.40, 164,858.14 and 65,747.40

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Solution

The fourth proportional to 119,462.40, 164,858.14 and 65,747.40 is: 90,731.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,462.40 : 164,858.14 = 65,747.40 : x
  2. Step 2: Convert to fraction form
    119,462.40/164,858.14 = 65,747.40/x
  3. Step 3: Cross multiply
    119,462.40x = 164,858.14 × 65,747.40
  4. Step 4: Simplify right side
    119,462.40x = 10,838,994,073.84
  5. Step 5: Solve for x
    x = 10,838,994,073.84/119,462.40
  6. Step 6: Final answer
    x = 90,731.43

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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.