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Finding the Fourth Proportional to 73,406.16, 101,309 and 68,902.32

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Solution

The fourth proportional to 73,406.16, 101,309 and 68,902.32 is: 95,093.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,406.16 : 101,309 = 68,902.32 : x
  2. Step 2: Convert to fraction form
    73,406.16/101,309 = 68,902.32/x
  3. Step 3: Cross multiply
    73,406.16x = 101,309 × 68,902.32
  4. Step 4: Simplify right side
    73,406.16x = 6,980,425,136.88
  5. Step 5: Solve for x
    x = 6,980,425,136.88/73,406.16
  6. Step 6: Final answer
    x = 95,093.18

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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.