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Finding the Fourth Proportional to 188,696.01, 260,400.11 and 103,812.87

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Solution

The fourth proportional to 188,696.01, 260,400.11 and 103,812.87 is: 143,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,696.01 : 260,400.11 = 103,812.87 : x
  2. Step 2: Convert to fraction form
    188,696.01/260,400.11 = 103,812.87/x
  3. Step 3: Cross multiply
    188,696.01x = 260,400.11 × 103,812.87
  4. Step 4: Simplify right side
    188,696.01x = 27,032,882,248.35
  5. Step 5: Solve for x
    x = 27,032,882,248.35/188,696.01
  6. Step 6: Final answer
    x = 143,261.55

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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.