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Finding the Fourth Proportional to 78,865.02, 118,279.71 and 22,705.02

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Solution

The fourth proportional to 78,865.02, 118,279.71 and 22,705.02 is: 34,052.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,865.02 : 118,279.71 = 22,705.02 : x
  2. Step 2: Convert to fraction form
    78,865.02/118,279.71 = 22,705.02/x
  3. Step 3: Cross multiply
    78,865.02x = 118,279.71 × 22,705.02
  4. Step 4: Simplify right side
    78,865.02x = 2,685,543,181.14
  5. Step 5: Solve for x
    x = 2,685,543,181.14/78,865.02
  6. Step 6: Final answer
    x = 34,052.40

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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.