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Finding the Fourth Proportional to 157,620.60, 236,225.70 and 64,017

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Solution

The fourth proportional to 157,620.60, 236,225.70 and 64,017 is: 95,942.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,620.60 : 236,225.70 = 64,017 : x
  2. Step 2: Convert to fraction form
    157,620.60/236,225.70 = 64,017/x
  3. Step 3: Cross multiply
    157,620.60x = 236,225.70 × 64,017
  4. Step 4: Simplify right side
    157,620.60x = 15,122,460,636.90
  5. Step 5: Solve for x
    x = 15,122,460,636.90/157,620.60
  6. Step 6: Final answer
    x = 95,942.16

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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.