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Finding the Fourth Proportional to 239,009.69, 358,576.05 and 70,523.21

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Solution

The fourth proportional to 239,009.69, 358,576.05 and 70,523.21 is: 105,802.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,009.69 : 358,576.05 = 70,523.21 : x
  2. Step 2: Convert to fraction form
    239,009.69/358,576.05 = 70,523.21/x
  3. Step 3: Cross multiply
    239,009.69x = 358,576.05 × 70,523.21
  4. Step 4: Simplify right side
    239,009.69x = 25,287,934,075.12
  5. Step 5: Solve for x
    x = 25,287,934,075.12/239,009.69
  6. Step 6: Final answer
    x = 105,802.97

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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.