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Finding the Fourth Proportional to 97,707.34, 134,833.74 and 54,687.40

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Solution

The fourth proportional to 97,707.34, 134,833.74 and 54,687.40 is: 75,467.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,707.34 : 134,833.74 = 54,687.40 : x
  2. Step 2: Convert to fraction form
    97,707.34/134,833.74 = 54,687.40/x
  3. Step 3: Cross multiply
    97,707.34x = 134,833.74 × 54,687.40
  4. Step 4: Simplify right side
    97,707.34x = 7,373,706,672.88
  5. Step 5: Solve for x
    x = 7,373,706,672.88/97,707.34
  6. Step 6: Final answer
    x = 75,467.27

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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.