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Finding the Fourth Proportional to 163,061.70, 244,592.55 and 78,862.20

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Solution

The fourth proportional to 163,061.70, 244,592.55 and 78,862.20 is: 118,293.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,061.70 : 244,592.55 = 78,862.20 : x
  2. Step 2: Convert to fraction form
    163,061.70/244,592.55 = 78,862.20/x
  3. Step 3: Cross multiply
    163,061.70x = 244,592.55 × 78,862.20
  4. Step 4: Simplify right side
    163,061.70x = 19,289,106,596.61
  5. Step 5: Solve for x
    x = 19,289,106,596.61/163,061.70
  6. Step 6: Final answer
    x = 118,293.30

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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.