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Finding the Fourth Proportional to 239,034, 358,567.41 and 79,109.64

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Solution

The fourth proportional to 239,034, 358,567.41 and 79,109.64 is: 118,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,034 : 358,567.41 = 79,109.64 : x
  2. Step 2: Convert to fraction form
    239,034/358,567.41 = 79,109.64/x
  3. Step 3: Cross multiply
    239,034x = 358,567.41 × 79,109.64
  4. Step 4: Simplify right side
    239,034x = 28,366,138,720.83
  5. Step 5: Solve for x
    x = 28,366,138,720.83/239,034
  6. Step 6: Final answer
    x = 118,669.89

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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.