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Finding the Fourth Proportional to 157,949.60, 236,809.20 and 64,407.20

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Solution

The fourth proportional to 157,949.60, 236,809.20 and 64,407.20 is: 96,563.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,949.60 : 236,809.20 = 64,407.20 : x
  2. Step 2: Convert to fraction form
    157,949.60/236,809.20 = 64,407.20/x
  3. Step 3: Cross multiply
    157,949.60x = 236,809.20 × 64,407.20
  4. Step 4: Simplify right side
    157,949.60x = 15,252,217,506.24
  5. Step 5: Solve for x
    x = 15,252,217,506.24/157,949.60
  6. Step 6: Final answer
    x = 96,563.82

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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.