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Finding the Fourth Proportional to 239,043.89, 358,482.26 and 70,519.47

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Solution

The fourth proportional to 239,043.89, 358,482.26 and 70,519.47 is: 105,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,043.89 : 358,482.26 = 70,519.47 : x
  2. Step 2: Convert to fraction form
    239,043.89/358,482.26 = 70,519.47/x
  3. Step 3: Cross multiply
    239,043.89x = 358,482.26 × 70,519.47
  4. Step 4: Simplify right side
    239,043.89x = 25,279,978,627.00
  5. Step 5: Solve for x
    x = 25,279,978,627.00/239,043.89
  6. Step 6: Final answer
    x = 105,754.55

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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.