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Finding the Fourth Proportional to 85,803.84, 118,278.05 and 60,238.48

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Solution

The fourth proportional to 85,803.84, 118,278.05 and 60,238.48 is: 83,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,803.84 : 118,278.05 = 60,238.48 : x
  2. Step 2: Convert to fraction form
    85,803.84/118,278.05 = 60,238.48/x
  3. Step 3: Cross multiply
    85,803.84x = 118,278.05 × 60,238.48
  4. Step 4: Simplify right side
    85,803.84x = 7,124,889,796.02
  5. Step 5: Solve for x
    x = 7,124,889,796.02/85,803.84
  6. Step 6: Final answer
    x = 83,036.96

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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.