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Finding the Fourth Proportional to 353,701.45, 530,218.63 and 176,040.51

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Solution

The fourth proportional to 353,701.45, 530,218.63 and 176,040.51 is: 263,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,701.45 : 530,218.63 = 176,040.51 : x
  2. Step 2: Convert to fraction form
    353,701.45/530,218.63 = 176,040.51/x
  3. Step 3: Cross multiply
    353,701.45x = 530,218.63 × 176,040.51
  4. Step 4: Simplify right side
    353,701.45x = 93,339,958,036.70
  5. Step 5: Solve for x
    x = 93,339,958,036.70/353,701.45
  6. Step 6: Final answer
    x = 263,894.76

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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.