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Finding the Fourth Proportional to 239,368.69, 359,003.28 and 70,849.47

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Solution

The fourth proportional to 239,368.69, 359,003.28 and 70,849.47 is: 106,259.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,368.69 : 359,003.28 = 70,849.47 : x
  2. Step 2: Convert to fraction form
    239,368.69/359,003.28 = 70,849.47/x
  3. Step 3: Cross multiply
    239,368.69x = 359,003.28 × 70,849.47
  4. Step 4: Simplify right side
    239,368.69x = 25,435,192,116.26
  5. Step 5: Solve for x
    x = 25,435,192,116.26/239,368.69
  6. Step 6: Final answer
    x = 106,259.48

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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.