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Finding the Fourth Proportional to 238,752.18, 358,223.94 and 86,959.86

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Solution

The fourth proportional to 238,752.18, 358,223.94 and 86,959.86 is: 130,474.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,752.18 : 358,223.94 = 86,959.86 : x
  2. Step 2: Convert to fraction form
    238,752.18/358,223.94 = 86,959.86/x
  3. Step 3: Cross multiply
    238,752.18x = 358,223.94 × 86,959.86
  4. Step 4: Simplify right side
    238,752.18x = 31,151,103,671.05
  5. Step 5: Solve for x
    x = 31,151,103,671.05/238,752.18
  6. Step 6: Final answer
    x = 130,474.64

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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.