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Finding the Fourth Proportional to 92,511.88, 127,669.49 and 56,694.98

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Solution

The fourth proportional to 92,511.88, 127,669.49 and 56,694.98 is: 78,240.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,511.88 : 127,669.49 = 56,694.98 : x
  2. Step 2: Convert to fraction form
    92,511.88/127,669.49 = 56,694.98/x
  3. Step 3: Cross multiply
    92,511.88x = 127,669.49 × 56,694.98
  4. Step 4: Simplify right side
    92,511.88x = 7,238,219,031.23
  5. Step 5: Solve for x
    x = 7,238,219,031.23/92,511.88
  6. Step 6: Final answer
    x = 78,240.97

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1.5x scale

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.