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Finding the Fourth Proportional to 371,339.40, 557,193.33 and 146,860.86

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Solution

The fourth proportional to 371,339.40, 557,193.33 and 146,860.86 is: 220,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,339.40 : 557,193.33 = 146,860.86 : x
  2. Step 2: Convert to fraction form
    371,339.40/557,193.33 = 146,860.86/x
  3. Step 3: Cross multiply
    371,339.40x = 557,193.33 × 146,860.86
  4. Step 4: Simplify right side
    371,339.40x = 81,829,891,630.06
  5. Step 5: Solve for x
    x = 81,829,891,630.06/371,339.40
  6. Step 6: Final answer
    x = 220,364.15

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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.