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Finding the Fourth Proportional to 210,702.88, 316,007.22 and 60,909.82

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Solution

The fourth proportional to 210,702.88, 316,007.22 and 60,909.82 is: 91,351.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,702.88 : 316,007.22 = 60,909.82 : x
  2. Step 2: Convert to fraction form
    210,702.88/316,007.22 = 60,909.82/x
  3. Step 3: Cross multiply
    210,702.88x = 316,007.22 × 60,909.82
  4. Step 4: Simplify right side
    210,702.88x = 19,247,942,888.90
  5. Step 5: Solve for x
    x = 19,247,942,888.90/210,702.88
  6. Step 6: Final answer
    x = 91,351.11

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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.