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Finding the Fourth Proportional to 201,559.56, 278,154.72 and 110,925.96

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Solution

The fourth proportional to 201,559.56, 278,154.72 and 110,925.96 is: 153,079.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,559.56 : 278,154.72 = 110,925.96 : x
  2. Step 2: Convert to fraction form
    201,559.56/278,154.72 = 110,925.96/x
  3. Step 3: Cross multiply
    201,559.56x = 278,154.72 × 110,925.96
  4. Step 4: Simplify right side
    201,559.56x = 30,854,579,344.53
  5. Step 5: Solve for x
    x = 30,854,579,344.53/201,559.56
  6. Step 6: Final answer
    x = 153,079.22

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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.