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Finding the Fourth Proportional to 92,995.31, 128,334.44 and 50,554.76

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Solution

The fourth proportional to 92,995.31, 128,334.44 and 50,554.76 is: 69,766.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,995.31 : 128,334.44 = 50,554.76 : x
  2. Step 2: Convert to fraction form
    92,995.31/128,334.44 = 50,554.76/x
  3. Step 3: Cross multiply
    92,995.31x = 128,334.44 × 50,554.76
  4. Step 4: Simplify right side
    92,995.31x = 6,487,916,298.65
  5. Step 5: Solve for x
    x = 6,487,916,298.65/92,995.31
  6. Step 6: Final answer
    x = 69,766.06

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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.