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Finding the Fourth Proportional to 157,622.64, 236,373.72 and 67,657.20

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Solution

The fourth proportional to 157,622.64, 236,373.72 and 67,657.20 is: 101,459.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,622.64 : 236,373.72 = 67,657.20 : x
  2. Step 2: Convert to fraction form
    157,622.64/236,373.72 = 67,657.20/x
  3. Step 3: Cross multiply
    157,622.64x = 236,373.72 × 67,657.20
  4. Step 4: Simplify right side
    157,622.64x = 15,992,384,048.78
  5. Step 5: Solve for x
    x = 15,992,384,048.78/157,622.64
  6. Step 6: Final answer
    x = 101,459.94

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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.