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Finding the Fourth Proportional to 207,565, 311,332.94 and 118,539.56

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Solution

The fourth proportional to 207,565, 311,332.94 and 118,539.56 is: 177,801.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,565 : 311,332.94 = 118,539.56 : x
  2. Step 2: Convert to fraction form
    207,565/311,332.94 = 118,539.56/x
  3. Step 3: Cross multiply
    207,565x = 311,332.94 × 118,539.56
  4. Step 4: Simplify right side
    207,565x = 36,905,269,721.11
  5. Step 5: Solve for x
    x = 36,905,269,721.11/207,565
  6. Step 6: Final answer
    x = 177,801.02

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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.