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Finding the Fourth Proportional to 205,365.70, 308,048.55 and 116,892.10

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Solution

The fourth proportional to 205,365.70, 308,048.55 and 116,892.10 is: 175,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,365.70 : 308,048.55 = 116,892.10 : x
  2. Step 2: Convert to fraction form
    205,365.70/308,048.55 = 116,892.10/x
  3. Step 3: Cross multiply
    205,365.70x = 308,048.55 × 116,892.10
  4. Step 4: Simplify right side
    205,365.70x = 36,008,441,911.46
  5. Step 5: Solve for x
    x = 36,008,441,911.46/205,365.70
  6. Step 6: Final answer
    x = 175,338.15

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1.5x scale

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.