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Finding the Fourth Proportional to 239,155.81, 358,754.34 and 61,661.32

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Solution

The fourth proportional to 239,155.81, 358,754.34 and 61,661.32 is: 92,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,155.81 : 358,754.34 = 61,661.32 : x
  2. Step 2: Convert to fraction form
    239,155.81/358,754.34 = 61,661.32/x
  3. Step 3: Cross multiply
    239,155.81x = 358,754.34 × 61,661.32
  4. Step 4: Simplify right side
    239,155.81x = 22,121,266,160.13
  5. Step 5: Solve for x
    x = 22,121,266,160.13/239,155.81
  6. Step 6: Final answer
    x = 92,497.30

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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.