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Finding the Fourth Proportional to 207,492.20, 310,800.90 and 185,330.60

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Solution

The fourth proportional to 207,492.20, 310,800.90 and 185,330.60 is: 277,605.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,492.20 : 310,800.90 = 185,330.60 : x
  2. Step 2: Convert to fraction form
    207,492.20/310,800.90 = 185,330.60/x
  3. Step 3: Cross multiply
    207,492.20x = 310,800.90 × 185,330.60
  4. Step 4: Simplify right side
    207,492.20x = 57,600,917,277.54
  5. Step 5: Solve for x
    x = 57,600,917,277.54/207,492.20
  6. Step 6: Final answer
    x = 277,605.22

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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.