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Finding the Fourth Proportional to 128,596.31, 193,018.96 and 62,083.12

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Solution

The fourth proportional to 128,596.31, 193,018.96 and 62,083.12 is: 93,184.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,596.31 : 193,018.96 = 62,083.12 : x
  2. Step 2: Convert to fraction form
    128,596.31/193,018.96 = 62,083.12/x
  3. Step 3: Cross multiply
    128,596.31x = 193,018.96 × 62,083.12
  4. Step 4: Simplify right side
    128,596.31x = 11,983,219,255.96
  5. Step 5: Solve for x
    x = 11,983,219,255.96/128,596.31
  6. Step 6: Final answer
    x = 93,184.79

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1.5x scale

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.