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Finding the Fourth Proportional to 139,454.29, 192,445.77 and 75,792.48

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Solution

The fourth proportional to 139,454.29, 192,445.77 and 75,792.48 is: 104,593.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,454.29 : 192,445.77 = 75,792.48 : x
  2. Step 2: Convert to fraction form
    139,454.29/192,445.77 = 75,792.48/x
  3. Step 3: Cross multiply
    139,454.29x = 192,445.77 × 75,792.48
  4. Step 4: Simplify right side
    139,454.29x = 14,585,942,173.81
  5. Step 5: Solve for x
    x = 14,585,942,173.81/139,454.29
  6. Step 6: Final answer
    x = 104,593.00

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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.