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Finding the Fourth Proportional to 238,393.94, 328,890.38 and 136,364.92

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Solution

The fourth proportional to 238,393.94, 328,890.38 and 136,364.92 is: 188,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,393.94 : 328,890.38 = 136,364.92 : x
  2. Step 2: Convert to fraction form
    238,393.94/328,890.38 = 136,364.92/x
  3. Step 3: Cross multiply
    238,393.94x = 328,890.38 × 136,364.92
  4. Step 4: Simplify right side
    238,393.94x = 44,849,108,853.42
  5. Step 5: Solve for x
    x = 44,849,108,853.42/238,393.94
  6. Step 6: Final answer
    x = 188,130.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.