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Finding the Fourth Proportional to 188,777.02, 260,512.14 and 103,894.15

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Solution

The fourth proportional to 188,777.02, 260,512.14 and 103,894.15 is: 143,373.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,777.02 : 260,512.14 = 103,894.15 : x
  2. Step 2: Convert to fraction form
    188,777.02/260,512.14 = 103,894.15/x
  3. Step 3: Cross multiply
    188,777.02x = 260,512.14 × 103,894.15
  4. Step 4: Simplify right side
    188,777.02x = 27,065,687,349.98
  5. Step 5: Solve for x
    x = 27,065,687,349.98/188,777.02
  6. Step 6: Final answer
    x = 143,373.85

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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.