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Finding the Fourth Proportional to 251,245.55, 346,689.77 and 143,809.17

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Solution

The fourth proportional to 251,245.55, 346,689.77 and 143,809.17 is: 198,440.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,245.55 : 346,689.77 = 143,809.17 : x
  2. Step 2: Convert to fraction form
    251,245.55/346,689.77 = 143,809.17/x
  3. Step 3: Cross multiply
    251,245.55x = 346,689.77 × 143,809.17
  4. Step 4: Simplify right side
    251,245.55x = 49,857,167,352.15
  5. Step 5: Solve for x
    x = 49,857,167,352.15/251,245.55
  6. Step 6: Final answer
    x = 198,440.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.