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Finding the Fourth Proportional to 99,274.40, 148,933.20 and 32,703.20

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Solution

The fourth proportional to 99,274.40, 148,933.20 and 32,703.20 is: 49,061.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,274.40 : 148,933.20 = 32,703.20 : x
  2. Step 2: Convert to fraction form
    99,274.40/148,933.20 = 32,703.20/x
  3. Step 3: Cross multiply
    99,274.40x = 148,933.20 × 32,703.20
  4. Step 4: Simplify right side
    99,274.40x = 4,870,592,226.24
  5. Step 5: Solve for x
    x = 4,870,592,226.24/99,274.40
  6. Step 6: Final answer
    x = 49,061.92

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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.