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Finding the Fourth Proportional to 101,955.88, 152,909.46 and 42,792.64

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Solution

The fourth proportional to 101,955.88, 152,909.46 and 42,792.64 is: 64,178.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,955.88 : 152,909.46 = 42,792.64 : x
  2. Step 2: Convert to fraction form
    101,955.88/152,909.46 = 42,792.64/x
  3. Step 3: Cross multiply
    101,955.88x = 152,909.46 × 42,792.64
  4. Step 4: Simplify right side
    101,955.88x = 6,543,399,474.37
  5. Step 5: Solve for x
    x = 6,543,399,474.37/101,955.88
  6. Step 6: Final answer
    x = 64,178.74

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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.