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Finding the Fourth Proportional to 484,866.64, 727,410.12 and 147,937.42

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Solution

The fourth proportional to 484,866.64, 727,410.12 and 147,937.42 is: 221,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,866.64 : 727,410.12 = 147,937.42 : x
  2. Step 2: Convert to fraction form
    484,866.64/727,410.12 = 147,937.42/x
  3. Step 3: Cross multiply
    484,866.64x = 727,410.12 × 147,937.42
  4. Step 4: Simplify right side
    484,866.64x = 107,611,176,434.69
  5. Step 5: Solve for x
    x = 107,611,176,434.69/484,866.64
  6. Step 6: Final answer
    x = 221,939.74

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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.