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Finding the Fourth Proportional to 205,373.01, 308,036.15 and 55,624.98

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Solution

The fourth proportional to 205,373.01, 308,036.15 and 55,624.98 is: 83,431.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,373.01 : 308,036.15 = 55,624.98 : x
  2. Step 2: Convert to fraction form
    205,373.01/308,036.15 = 55,624.98/x
  3. Step 3: Cross multiply
    205,373.01x = 308,036.15 × 55,624.98
  4. Step 4: Simplify right side
    205,373.01x = 17,134,504,683.03
  5. Step 5: Solve for x
    x = 17,134,504,683.03/205,373.01
  6. Step 6: Final answer
    x = 83,431.14

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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.