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Finding the Fourth Proportional to 358,871.47, 495,238.05 and 195,534.78

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Solution

The fourth proportional to 358,871.47, 495,238.05 and 195,534.78 is: 269,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,871.47 : 495,238.05 = 195,534.78 : x
  2. Step 2: Convert to fraction form
    358,871.47/495,238.05 = 195,534.78/x
  3. Step 3: Cross multiply
    358,871.47x = 495,238.05 × 195,534.78
  4. Step 4: Simplify right side
    358,871.47x = 96,836,263,154.38
  5. Step 5: Solve for x
    x = 96,836,263,154.38/358,871.47
  6. Step 6: Final answer
    x = 269,835.50

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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.