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Finding the Fourth Proportional to 207,675.78, 286,573.08 and 117,016.80

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Solution

The fourth proportional to 207,675.78, 286,573.08 and 117,016.80 is: 161,472.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,675.78 : 286,573.08 = 117,016.80 : x
  2. Step 2: Convert to fraction form
    207,675.78/286,573.08 = 117,016.80/x
  3. Step 3: Cross multiply
    207,675.78x = 286,573.08 × 117,016.80
  4. Step 4: Simplify right side
    207,675.78x = 33,533,864,787.74
  5. Step 5: Solve for x
    x = 33,533,864,787.74/207,675.78
  6. Step 6: Final answer
    x = 161,472.20

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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.