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Finding the Fourth Proportional to 371,764.84, 556,898.82 and 171,809.86

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Solution

The fourth proportional to 371,764.84, 556,898.82 and 171,809.86 is: 257,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,764.84 : 556,898.82 = 171,809.86 : x
  2. Step 2: Convert to fraction form
    371,764.84/556,898.82 = 171,809.86/x
  3. Step 3: Cross multiply
    371,764.84x = 556,898.82 × 171,809.86
  4. Step 4: Simplify right side
    371,764.84x = 95,680,708,298.37
  5. Step 5: Solve for x
    x = 95,680,708,298.37/371,764.84
  6. Step 6: Final answer
    x = 257,368.90

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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.