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Finding the Fourth Proportional to 173,221.20, 242,859.60 and 173,221.20

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Solution

The fourth proportional to 173,221.20, 242,859.60 and 173,221.20 is: 242,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,221.20 : 242,859.60 = 173,221.20 : x
  2. Step 2: Convert to fraction form
    173,221.20/242,859.60 = 173,221.20/x
  3. Step 3: Cross multiply
    173,221.20x = 242,859.60 × 173,221.20
  4. Step 4: Simplify right side
    173,221.20x = 42,068,431,343.52
  5. Step 5: Solve for x
    x = 42,068,431,343.52/173,221.20
  6. Step 6: Final answer
    x = 242,859.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.