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Finding the Fourth Proportional to 119,189.61, 164,473.54 and 65,476.89

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Solution

The fourth proportional to 119,189.61, 164,473.54 and 65,476.89 is: 90,353.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,189.61 : 164,473.54 = 65,476.89 : x
  2. Step 2: Convert to fraction form
    119,189.61/164,473.54 = 65,476.89/x
  3. Step 3: Cross multiply
    119,189.61x = 164,473.54 × 65,476.89
  4. Step 4: Simplify right side
    119,189.61x = 10,769,215,722.80
  5. Step 5: Solve for x
    x = 10,769,215,722.80/119,189.61
  6. Step 6: Final answer
    x = 90,353.65

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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.