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Finding the Fourth Proportional to 129,950.46, 194,816.34 and 63,356.31

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Solution

The fourth proportional to 129,950.46, 194,816.34 and 63,356.31 is: 94,981.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,950.46 : 194,816.34 = 63,356.31 : x
  2. Step 2: Convert to fraction form
    129,950.46/194,816.34 = 63,356.31/x
  3. Step 3: Cross multiply
    129,950.46x = 194,816.34 × 63,356.31
  4. Step 4: Simplify right side
    129,950.46x = 12,342,844,430.11
  5. Step 5: Solve for x
    x = 12,342,844,430.11/129,950.46
  6. Step 6: Final answer
    x = 94,981.15

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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.