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Finding the Fourth Proportional to 118,807.32, 178,238.52 and 34,569.48

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Solution

The fourth proportional to 118,807.32, 178,238.52 and 34,569.48 is: 51,862.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,807.32 : 178,238.52 = 34,569.48 : x
  2. Step 2: Convert to fraction form
    118,807.32/178,238.52 = 34,569.48/x
  3. Step 3: Cross multiply
    118,807.32x = 178,238.52 × 34,569.48
  4. Step 4: Simplify right side
    118,807.32x = 6,161,612,952.37
  5. Step 5: Solve for x
    x = 6,161,612,952.37/118,807.32
  6. Step 6: Final answer
    x = 51,862.23

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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.