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Finding the Fourth Proportional to 73,153.55, 100,951.90 and 39,619.55

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Solution

The fourth proportional to 73,153.55, 100,951.90 and 39,619.55 is: 54,674.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,153.55 : 100,951.90 = 39,619.55 : x
  2. Step 2: Convert to fraction form
    73,153.55/100,951.90 = 39,619.55/x
  3. Step 3: Cross multiply
    73,153.55x = 100,951.90 × 39,619.55
  4. Step 4: Simplify right side
    73,153.55x = 3,999,668,750.60
  5. Step 5: Solve for x
    x = 3,999,668,750.60/73,153.55
  6. Step 6: Final answer
    x = 54,674.98

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1.5x scale

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.