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Finding the Fourth Proportional to 189,484.52, 261,481.79 and 104,599.76

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Solution

The fourth proportional to 189,484.52, 261,481.79 and 104,599.76 is: 144,343.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,484.52 : 261,481.79 = 104,599.76 : x
  2. Step 2: Convert to fraction form
    189,484.52/261,481.79 = 104,599.76/x
  3. Step 3: Cross multiply
    189,484.52x = 261,481.79 × 104,599.76
  4. Step 4: Simplify right side
    189,484.52x = 27,350,931,955.37
  5. Step 5: Solve for x
    x = 27,350,931,955.37/189,484.52
  6. Step 6: Final answer
    x = 144,343.89

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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.