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Finding the Fourth Proportional to 166,718.25, 250,077.78 and 42,059.25

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Solution

The fourth proportional to 166,718.25, 250,077.78 and 42,059.25 is: 63,088.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,718.25 : 250,077.78 = 42,059.25 : x
  2. Step 2: Convert to fraction form
    166,718.25/250,077.78 = 42,059.25/x
  3. Step 3: Cross multiply
    166,718.25x = 250,077.78 × 42,059.25
  4. Step 4: Simplify right side
    166,718.25x = 10,518,083,868.47
  5. Step 5: Solve for x
    x = 10,518,083,868.47/166,718.25
  6. Step 6: Final answer
    x = 63,088.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.