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Finding the Fourth Proportional to 249,692.86, 374,576.58 and 91,909.32

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Solution

The fourth proportional to 249,692.86, 374,576.58 and 91,909.32 is: 137,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,692.86 : 374,576.58 = 91,909.32 : x
  2. Step 2: Convert to fraction form
    249,692.86/374,576.58 = 91,909.32/x
  3. Step 3: Cross multiply
    249,692.86x = 374,576.58 × 91,909.32
  4. Step 4: Simplify right side
    249,692.86x = 34,427,078,755.73
  5. Step 5: Solve for x
    x = 34,427,078,755.73/249,692.86
  6. Step 6: Final answer
    x = 137,877.71

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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.