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Finding the Fourth Proportional to 239,210.40, 358,815.60 and 164,560.80

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Solution

The fourth proportional to 239,210.40, 358,815.60 and 164,560.80 is: 246,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,210.40 : 358,815.60 = 164,560.80 : x
  2. Step 2: Convert to fraction form
    239,210.40/358,815.60 = 164,560.80/x
  3. Step 3: Cross multiply
    239,210.40x = 358,815.60 × 164,560.80
  4. Step 4: Simplify right side
    239,210.40x = 59,046,982,188.48
  5. Step 5: Solve for x
    x = 59,046,982,188.48/239,210.40
  6. Step 6: Final answer
    x = 246,841.20

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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.