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Finding the Fourth Proportional to 239,218.60, 358,827.90 and 73,006.60

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Solution

The fourth proportional to 239,218.60, 358,827.90 and 73,006.60 is: 109,509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,218.60 : 358,827.90 = 73,006.60 : x
  2. Step 2: Convert to fraction form
    239,218.60/358,827.90 = 73,006.60/x
  3. Step 3: Cross multiply
    239,218.60x = 358,827.90 × 73,006.60
  4. Step 4: Simplify right side
    239,218.60x = 26,196,804,964.14
  5. Step 5: Solve for x
    x = 26,196,804,964.14/239,218.60
  6. Step 6: Final answer
    x = 109,509.90

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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.