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Finding the Fourth Proportional to 207,111.66, 310,668.30 and 63,018.92

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Solution

The fourth proportional to 207,111.66, 310,668.30 and 63,018.92 is: 94,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,111.66 : 310,668.30 = 63,018.92 : x
  2. Step 2: Convert to fraction form
    207,111.66/310,668.30 = 63,018.92/x
  3. Step 3: Cross multiply
    207,111.66x = 310,668.30 × 63,018.92
  4. Step 4: Simplify right side
    207,111.66x = 19,577,979,190.89
  5. Step 5: Solve for x
    x = 19,577,979,190.89/207,111.66
  6. Step 6: Final answer
    x = 94,528.62

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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.