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Finding the Fourth Proportional to 124,437.96, 171,751.20 and 73,431.72

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Solution

The fourth proportional to 124,437.96, 171,751.20 and 73,431.72 is: 101,351.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,437.96 : 171,751.20 = 73,431.72 : x
  2. Step 2: Convert to fraction form
    124,437.96/171,751.20 = 73,431.72/x
  3. Step 3: Cross multiply
    124,437.96x = 171,751.20 × 73,431.72
  4. Step 4: Simplify right side
    124,437.96x = 12,611,986,028.06
  5. Step 5: Solve for x
    x = 12,611,986,028.06/124,437.96
  6. Step 6: Final answer
    x = 101,351.60

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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.