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Finding the Fourth Proportional to 371,113.20, 556,669.80 and 171,374.49

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Solution

The fourth proportional to 371,113.20, 556,669.80 and 171,374.49 is: 257,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,113.20 : 556,669.80 = 171,374.49 : x
  2. Step 2: Convert to fraction form
    371,113.20/556,669.80 = 171,374.49/x
  3. Step 3: Cross multiply
    371,113.20x = 556,669.80 × 171,374.49
  4. Step 4: Simplify right side
    371,113.20x = 95,399,003,073.40
  5. Step 5: Solve for x
    x = 95,399,003,073.40/371,113.20
  6. Step 6: Final answer
    x = 257,061.74

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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.