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Finding the Fourth Proportional to 188,685.02, 260,384.82 and 103,801.88

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Solution

The fourth proportional to 188,685.02, 260,384.82 and 103,801.88 is: 143,246.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,685.02 : 260,384.82 = 103,801.88 : x
  2. Step 2: Convert to fraction form
    188,685.02/260,384.82 = 103,801.88/x
  3. Step 3: Cross multiply
    188,685.02x = 260,384.82 × 103,801.88
  4. Step 4: Simplify right side
    188,685.02x = 27,028,433,839.46
  5. Step 5: Solve for x
    x = 27,028,433,839.46/188,685.02
  6. Step 6: Final answer
    x = 143,246.32

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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.