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Finding the Fourth Proportional to 188,931, 260,724.84 and 104,047.92

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Solution

The fourth proportional to 188,931, 260,724.84 and 104,047.92 is: 143,586.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,931 : 260,724.84 = 104,047.92 : x
  2. Step 2: Convert to fraction form
    188,931/260,724.84 = 104,047.92/x
  3. Step 3: Cross multiply
    188,931x = 260,724.84 × 104,047.92
  4. Step 4: Simplify right side
    188,931x = 27,127,877,294.33
  5. Step 5: Solve for x
    x = 27,127,877,294.33/188,931
  6. Step 6: Final answer
    x = 143,586.16

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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.