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Finding the Fourth Proportional to 238,963.02, 358,352.37 and 81,154.38

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Solution

The fourth proportional to 238,963.02, 358,352.37 and 81,154.38 is: 121,700.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,963.02 : 358,352.37 = 81,154.38 : x
  2. Step 2: Convert to fraction form
    238,963.02/358,352.37 = 81,154.38/x
  3. Step 3: Cross multiply
    238,963.02x = 358,352.37 × 81,154.38
  4. Step 4: Simplify right side
    238,963.02x = 29,081,864,408.88
  5. Step 5: Solve for x
    x = 29,081,864,408.88/238,963.02
  6. Step 6: Final answer
    x = 121,700.27

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1.5x scale

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.