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Finding the Fourth Proportional to 162,915.33, 244,406.70 and 78,734.07

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Solution

The fourth proportional to 162,915.33, 244,406.70 and 78,734.07 is: 118,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,915.33 : 244,406.70 = 78,734.07 : x
  2. Step 2: Convert to fraction form
    162,915.33/244,406.70 = 78,734.07/x
  3. Step 3: Cross multiply
    162,915.33x = 244,406.70 × 78,734.07
  4. Step 4: Simplify right side
    162,915.33x = 19,243,134,226.27
  5. Step 5: Solve for x
    x = 19,243,134,226.27/162,915.33
  6. Step 6: Final answer
    x = 118,117.39

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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.