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Finding the Fourth Proportional to 219,873.32, 303,425.28 and 124,377.98

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Solution

The fourth proportional to 219,873.32, 303,425.28 and 124,377.98 is: 171,641.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,873.32 : 303,425.28 = 124,377.98 : x
  2. Step 2: Convert to fraction form
    219,873.32/303,425.28 = 124,377.98/x
  3. Step 3: Cross multiply
    219,873.32x = 303,425.28 × 124,377.98
  4. Step 4: Simplify right side
    219,873.32x = 37,739,423,407.33
  5. Step 5: Solve for x
    x = 37,739,423,407.33/219,873.32
  6. Step 6: Final answer
    x = 171,641.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.