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Finding the Fourth Proportional to 239,158.39, 358,737.59 and 208,365.43

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Solution

The fourth proportional to 239,158.39, 358,737.59 and 208,365.43 is: 312,548.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,158.39 : 358,737.59 = 208,365.43 : x
  2. Step 2: Convert to fraction form
    239,158.39/358,737.59 = 208,365.43/x
  3. Step 3: Cross multiply
    239,158.39x = 358,737.59 × 208,365.43
  4. Step 4: Simplify right side
    239,158.39x = 74,748,511,155.69
  5. Step 5: Solve for x
    x = 74,748,511,155.69/239,158.39
  6. Step 6: Final answer
    x = 312,548.15

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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.