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Finding the Fourth Proportional to 353,700.45, 530,217.14 and 176,039.51

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Solution

The fourth proportional to 353,700.45, 530,217.14 and 176,039.51 is: 263,893.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,700.45 : 530,217.14 = 176,039.51 : x
  2. Step 2: Convert to fraction form
    353,700.45/530,217.14 = 176,039.51/x
  3. Step 3: Cross multiply
    353,700.45x = 530,217.14 × 176,039.51
  4. Step 4: Simplify right side
    353,700.45x = 93,339,161,987.92
  5. Step 5: Solve for x
    x = 93,339,161,987.92/353,700.45
  6. Step 6: Final answer
    x = 263,893.25

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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.