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Finding the Fourth Proportional to 239,043.80, 358,483.08 and 106,017.10

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Solution

The fourth proportional to 239,043.80, 358,483.08 and 106,017.10 is: 158,989.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,043.80 : 358,483.08 = 106,017.10 : x
  2. Step 2: Convert to fraction form
    239,043.80/358,483.08 = 106,017.10/x
  3. Step 3: Cross multiply
    239,043.80x = 358,483.08 × 106,017.10
  4. Step 4: Simplify right side
    239,043.80x = 38,005,336,540.67
  5. Step 5: Solve for x
    x = 38,005,336,540.67/239,043.80
  6. Step 6: Final answer
    x = 158,989.01

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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.