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Finding the Fourth Proportional to 188,607.17, 260,272.71 and 103,724.23

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Solution

The fourth proportional to 188,607.17, 260,272.71 and 103,724.23 is: 143,136.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,607.17 : 260,272.71 = 103,724.23 : x
  2. Step 2: Convert to fraction form
    188,607.17/260,272.71 = 103,724.23/x
  3. Step 3: Cross multiply
    188,607.17x = 260,272.71 × 103,724.23
  4. Step 4: Simplify right side
    188,607.17x = 26,996,586,434.76
  5. Step 5: Solve for x
    x = 26,996,586,434.76/188,607.17
  6. Step 6: Final answer
    x = 143,136.59

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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.