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Finding the Fourth Proportional to 571,700.66, 857,371.08 and 206,915.18

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Solution

The fourth proportional to 571,700.66, 857,371.08 and 206,915.18 is: 310,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,700.66 : 857,371.08 = 206,915.18 : x
  2. Step 2: Convert to fraction form
    571,700.66/857,371.08 = 206,915.18/x
  3. Step 3: Cross multiply
    571,700.66x = 857,371.08 × 206,915.18
  4. Step 4: Simplify right side
    571,700.66x = 177,403,091,344.99
  5. Step 5: Solve for x
    x = 177,403,091,344.99/571,700.66
  6. Step 6: Final answer
    x = 310,307.66

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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.