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Finding the Fourth Proportional to 113,912.94, 157,134.15 and 68,559.42

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Solution

The fourth proportional to 113,912.94, 157,134.15 and 68,559.42 is: 94,572.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,912.94 : 157,134.15 = 68,559.42 : x
  2. Step 2: Convert to fraction form
    113,912.94/157,134.15 = 68,559.42/x
  3. Step 3: Cross multiply
    113,912.94x = 157,134.15 × 68,559.42
  4. Step 4: Simplify right side
    113,912.94x = 10,773,026,186.19
  5. Step 5: Solve for x
    x = 10,773,026,186.19/113,912.94
  6. Step 6: Final answer
    x = 94,572.45

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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.