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Finding the Fourth Proportional to 188,923.84, 260,713.62 and 104,040.28

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Solution

The fourth proportional to 188,923.84, 260,713.62 and 104,040.28 is: 143,574.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,923.84 : 260,713.62 = 104,040.28 : x
  2. Step 2: Convert to fraction form
    188,923.84/260,713.62 = 104,040.28/x
  3. Step 3: Cross multiply
    188,923.84x = 260,713.62 × 104,040.28
  4. Step 4: Simplify right side
    188,923.84x = 27,124,718,024.61
  5. Step 5: Solve for x
    x = 27,124,718,024.61/188,923.84
  6. Step 6: Final answer
    x = 143,574.88

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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.