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Finding the Fourth Proportional to 136,756.96, 204,595.98 and 103,572.88

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Solution

The fourth proportional to 136,756.96, 204,595.98 and 103,572.88 is: 154,950.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,756.96 : 204,595.98 = 103,572.88 : x
  2. Step 2: Convert to fraction form
    136,756.96/204,595.98 = 103,572.88/x
  3. Step 3: Cross multiply
    136,756.96x = 204,595.98 × 103,572.88
  4. Step 4: Simplify right side
    136,756.96x = 21,190,594,885.02
  5. Step 5: Solve for x
    x = 21,190,594,885.02/136,756.96
  6. Step 6: Final answer
    x = 154,950.76

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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.