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Finding the Fourth Proportional to 207,102.83, 310,156 and 118,086.46

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Solution

The fourth proportional to 207,102.83, 310,156 and 118,086.46 is: 176,845.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,102.83 : 310,156 = 118,086.46 : x
  2. Step 2: Convert to fraction form
    207,102.83/310,156 = 118,086.46/x
  3. Step 3: Cross multiply
    207,102.83x = 310,156 × 118,086.46
  4. Step 4: Simplify right side
    207,102.83x = 36,625,224,087.76
  5. Step 5: Solve for x
    x = 36,625,224,087.76/207,102.83
  6. Step 6: Final answer
    x = 176,845.60

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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.