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Finding the Fourth Proportional to 239,059.28, 358,530.60 and 98,858

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Solution

The fourth proportional to 239,059.28, 358,530.60 and 98,858 is: 148,262.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,059.28 : 358,530.60 = 98,858 : x
  2. Step 2: Convert to fraction form
    239,059.28/358,530.60 = 98,858/x
  3. Step 3: Cross multiply
    239,059.28x = 358,530.60 × 98,858
  4. Step 4: Simplify right side
    239,059.28x = 35,443,618,054.80
  5. Step 5: Solve for x
    x = 35,443,618,054.80/239,059.28
  6. Step 6: Final answer
    x = 148,262.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.