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Finding the Fourth Proportional to 208,887.52, 313,383.10 and 61,143.52

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Solution

The fourth proportional to 208,887.52, 313,383.10 and 61,143.52 is: 91,730.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,887.52 : 313,383.10 = 61,143.52 : x
  2. Step 2: Convert to fraction form
    208,887.52/313,383.10 = 61,143.52/x
  3. Step 3: Cross multiply
    208,887.52x = 313,383.10 × 61,143.52
  4. Step 4: Simplify right side
    208,887.52x = 19,161,345,842.51
  5. Step 5: Solve for x
    x = 19,161,345,842.51/208,887.52
  6. Step 6: Final answer
    x = 91,730.45

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1.5x scale

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.