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Finding the Fourth Proportional to 239,164.64, 358,698.04 and 89,377.28

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Solution

The fourth proportional to 239,164.64, 358,698.04 and 89,377.28 is: 134,047.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,164.64 : 358,698.04 = 89,377.28 : x
  2. Step 2: Convert to fraction form
    239,164.64/358,698.04 = 89,377.28/x
  3. Step 3: Cross multiply
    239,164.64x = 358,698.04 × 89,377.28
  4. Step 4: Simplify right side
    239,164.64x = 32,059,455,156.53
  5. Step 5: Solve for x
    x = 32,059,455,156.53/239,164.64
  6. Step 6: Final answer
    x = 134,047.64

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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.