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Finding the Fourth Proportional to 371,672.58, 557,509.23 and 101,780.98

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Solution

The fourth proportional to 371,672.58, 557,509.23 and 101,780.98 is: 152,671.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,672.58 : 557,509.23 = 101,780.98 : x
  2. Step 2: Convert to fraction form
    371,672.58/557,509.23 = 101,780.98/x
  3. Step 3: Cross multiply
    371,672.58x = 557,509.23 × 101,780.98
  4. Step 4: Simplify right side
    371,672.58x = 56,743,835,788.45
  5. Step 5: Solve for x
    x = 56,743,835,788.45/371,672.58
  6. Step 6: Final answer
    x = 152,671.57

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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.