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Finding the Fourth Proportional to 251,706.88, 377,573.34 and 91,779.10

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Solution

The fourth proportional to 251,706.88, 377,573.34 and 91,779.10 is: 137,673.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,706.88 : 377,573.34 = 91,779.10 : x
  2. Step 2: Convert to fraction form
    251,706.88/377,573.34 = 91,779.10/x
  3. Step 3: Cross multiply
    251,706.88x = 377,573.34 × 91,779.10
  4. Step 4: Simplify right side
    251,706.88x = 34,653,341,329.19
  5. Step 5: Solve for x
    x = 34,653,341,329.19/251,706.88
  6. Step 6: Final answer
    x = 137,673.40

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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.