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Finding the Fourth Proportional to 201,501, 278,071.37 and 110,855.02

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Solution

The fourth proportional to 201,501, 278,071.37 and 110,855.02 is: 152,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,501 : 278,071.37 = 110,855.02 : x
  2. Step 2: Convert to fraction form
    201,501/278,071.37 = 110,855.02/x
  3. Step 3: Cross multiply
    201,501x = 278,071.37 × 110,855.02
  4. Step 4: Simplify right side
    201,501x = 30,825,605,892.42
  5. Step 5: Solve for x
    x = 30,825,605,892.42/201,501
  6. Step 6: Final answer
    x = 152,979.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.