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Finding the Fourth Proportional to 249,514.86, 374,420.52 and 91,854.03

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Solution

The fourth proportional to 249,514.86, 374,420.52 and 91,854.03 is: 137,835.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,514.86 : 374,420.52 = 91,854.03 : x
  2. Step 2: Convert to fraction form
    249,514.86/374,420.52 = 91,854.03/x
  3. Step 3: Cross multiply
    249,514.86x = 374,420.52 × 91,854.03
  4. Step 4: Simplify right side
    249,514.86x = 34,392,033,676.70
  5. Step 5: Solve for x
    x = 34,392,033,676.70/249,514.86
  6. Step 6: Final answer
    x = 137,835.61

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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.