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Finding the Fourth Proportional to 114,303.46, 171,520 and 61,711.78

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Solution

The fourth proportional to 114,303.46, 171,520 and 61,711.78 is: 92,602.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,303.46 : 171,520 = 61,711.78 : x
  2. Step 2: Convert to fraction form
    114,303.46/171,520 = 61,711.78/x
  3. Step 3: Cross multiply
    114,303.46x = 171,520 × 61,711.78
  4. Step 4: Simplify right side
    114,303.46x = 10,584,804,505.60
  5. Step 5: Solve for x
    x = 10,584,804,505.60/114,303.46
  6. Step 6: Final answer
    x = 92,602.66

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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.