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Finding the Fourth Proportional to 103,400.05, 144,956.90 and 103,400.05

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Solution

The fourth proportional to 103,400.05, 144,956.90 and 103,400.05 is: 144,956.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,400.05 : 144,956.90 = 103,400.05 : x
  2. Step 2: Convert to fraction form
    103,400.05/144,956.90 = 103,400.05/x
  3. Step 3: Cross multiply
    103,400.05x = 144,956.90 × 103,400.05
  4. Step 4: Simplify right side
    103,400.05x = 14,988,550,707.85
  5. Step 5: Solve for x
    x = 14,988,550,707.85/103,400.05
  6. Step 6: Final answer
    x = 144,956.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.