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Finding the Fourth Proportional to 92,754.91, 127,859.75 and 56,878.39

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Solution

The fourth proportional to 92,754.91, 127,859.75 and 56,878.39 is: 78,405.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,754.91 : 127,859.75 = 56,878.39 : x
  2. Step 2: Convert to fraction form
    92,754.91/127,859.75 = 56,878.39/x
  3. Step 3: Cross multiply
    92,754.91x = 127,859.75 × 56,878.39
  4. Step 4: Simplify right side
    92,754.91x = 7,272,456,441.41
  5. Step 5: Solve for x
    x = 7,272,456,441.41/92,754.91
  6. Step 6: Final answer
    x = 78,405.08

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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.