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Finding the Fourth Proportional to 213,177.76, 319,710.96 and 63,377.72

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Solution

The fourth proportional to 213,177.76, 319,710.96 and 63,377.72 is: 95,050.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,177.76 : 319,710.96 = 63,377.72 : x
  2. Step 2: Convert to fraction form
    213,177.76/319,710.96 = 63,377.72/x
  3. Step 3: Cross multiply
    213,177.76x = 319,710.96 × 63,377.72
  4. Step 4: Simplify right side
    213,177.76x = 20,262,551,703.81
  5. Step 5: Solve for x
    x = 20,262,551,703.81/213,177.76
  6. Step 6: Final answer
    x = 95,050.03

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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.