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Finding the Fourth Proportional to 239,308.74, 358,964.28 and 61,803.45

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Solution

The fourth proportional to 239,308.74, 358,964.28 and 61,803.45 is: 92,705.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,308.74 : 358,964.28 = 61,803.45 : x
  2. Step 2: Convert to fraction form
    239,308.74/358,964.28 = 61,803.45/x
  3. Step 3: Cross multiply
    239,308.74x = 358,964.28 × 61,803.45
  4. Step 4: Simplify right side
    239,308.74x = 22,185,230,930.77
  5. Step 5: Solve for x
    x = 22,185,230,930.77/239,308.74
  6. Step 6: Final answer
    x = 92,705.48

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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.