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Finding the Fourth Proportional to 190,538.54, 285,808.32 and 64,267.46

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Solution

The fourth proportional to 190,538.54, 285,808.32 and 64,267.46 is: 96,401.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,538.54 : 285,808.32 = 64,267.46 : x
  2. Step 2: Convert to fraction form
    190,538.54/285,808.32 = 64,267.46/x
  3. Step 3: Cross multiply
    190,538.54x = 285,808.32 × 64,267.46
  4. Step 4: Simplify right side
    190,538.54x = 18,368,174,416.01
  5. Step 5: Solve for x
    x = 18,368,174,416.01/190,538.54
  6. Step 6: Final answer
    x = 96,401.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.