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Finding the Fourth Proportional to 119,170.59, 164,459.61 and 65,460.57

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Solution

The fourth proportional to 119,170.59, 164,459.61 and 65,460.57 is: 90,337.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,170.59 : 164,459.61 = 65,460.57 : x
  2. Step 2: Convert to fraction form
    119,170.59/164,459.61 = 65,460.57/x
  3. Step 3: Cross multiply
    119,170.59x = 164,459.61 × 65,460.57
  4. Step 4: Simplify right side
    119,170.59x = 10,765,619,812.58
  5. Step 5: Solve for x
    x = 10,765,619,812.58/119,170.59
  6. Step 6: Final answer
    x = 90,337.89

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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.