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Finding the Fourth Proportional to 206,927.40, 310,347.90 and 88,602.60

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Solution

The fourth proportional to 206,927.40, 310,347.90 and 88,602.60 is: 132,885.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,927.40 : 310,347.90 = 88,602.60 : x
  2. Step 2: Convert to fraction form
    206,927.40/310,347.90 = 88,602.60/x
  3. Step 3: Cross multiply
    206,927.40x = 310,347.90 × 88,602.60
  4. Step 4: Simplify right side
    206,927.40x = 27,497,630,844.54
  5. Step 5: Solve for x
    x = 27,497,630,844.54/206,927.40
  6. Step 6: Final answer
    x = 132,885.40

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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.