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Finding the Fourth Proportional to 113,805.02, 156,954.51 and 68,474.53

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Solution

The fourth proportional to 113,805.02, 156,954.51 and 68,474.53 is: 94,436.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,805.02 : 156,954.51 = 68,474.53 : x
  2. Step 2: Convert to fraction form
    113,805.02/156,954.51 = 68,474.53/x
  3. Step 3: Cross multiply
    113,805.02x = 156,954.51 × 68,474.53
  4. Step 4: Simplify right side
    113,805.02x = 10,747,386,303.63
  5. Step 5: Solve for x
    x = 10,747,386,303.63/113,805.02
  6. Step 6: Final answer
    x = 94,436.84

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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.