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Finding the Fourth Proportional to 201,508.36, 278,081.51 and 110,862.37

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Solution

The fourth proportional to 201,508.36, 278,081.51 and 110,862.37 is: 152,990.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,508.36 : 278,081.51 = 110,862.37 : x
  2. Step 2: Convert to fraction form
    201,508.36/278,081.51 = 110,862.37/x
  3. Step 3: Cross multiply
    201,508.36x = 278,081.51 × 110,862.37
  4. Step 4: Simplify right side
    201,508.36x = 30,828,773,307.06
  5. Step 5: Solve for x
    x = 30,828,773,307.06/201,508.36
  6. Step 6: Final answer
    x = 152,990.05

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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.