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Finding the Fourth Proportional to 188,777.92, 260,510.16 and 103,894.24

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Solution

The fourth proportional to 188,777.92, 260,510.16 and 103,894.24 is: 143,372.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,777.92 : 260,510.16 = 103,894.24 : x
  2. Step 2: Convert to fraction form
    188,777.92/260,510.16 = 103,894.24/x
  3. Step 3: Cross multiply
    188,777.92x = 260,510.16 × 103,894.24
  4. Step 4: Simplify right side
    188,777.92x = 27,065,505,085.48
  5. Step 5: Solve for x
    x = 27,065,505,085.48/188,777.92
  6. Step 6: Final answer
    x = 143,372.20

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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.