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Finding the Fourth Proportional to 139,363.64, 192,323.46 and 75,702.44

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Solution

The fourth proportional to 139,363.64, 192,323.46 and 75,702.44 is: 104,470.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,363.64 : 192,323.46 = 75,702.44 : x
  2. Step 2: Convert to fraction form
    139,363.64/192,323.46 = 75,702.44/x
  3. Step 3: Cross multiply
    139,363.64x = 192,323.46 × 75,702.44
  4. Step 4: Simplify right side
    139,363.64x = 14,559,355,191.24
  5. Step 5: Solve for x
    x = 14,559,355,191.24/139,363.64
  6. Step 6: Final answer
    x = 104,470.26

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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.