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Finding the Fourth Proportional to 216,041.40, 324,062.10 and 192,713.40

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Solution

The fourth proportional to 216,041.40, 324,062.10 and 192,713.40 is: 289,070.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,041.40 : 324,062.10 = 192,713.40 : x
  2. Step 2: Convert to fraction form
    216,041.40/324,062.10 = 192,713.40/x
  3. Step 3: Cross multiply
    216,041.40x = 324,062.10 × 192,713.40
  4. Step 4: Simplify right side
    216,041.40x = 62,451,109,102.14
  5. Step 5: Solve for x
    x = 62,451,109,102.14/216,041.40
  6. Step 6: Final answer
    x = 289,070.10

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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.