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Finding the Fourth Proportional to 249,656.92, 374,468.10 and 91,855.96

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Solution

The fourth proportional to 249,656.92, 374,468.10 and 91,855.96 is: 137,777.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,656.92 : 374,468.10 = 91,855.96 : x
  2. Step 2: Convert to fraction form
    249,656.92/374,468.10 = 91,855.96/x
  3. Step 3: Cross multiply
    249,656.92x = 374,468.10 × 91,855.96
  4. Step 4: Simplify right side
    249,656.92x = 34,397,126,814.88
  5. Step 5: Solve for x
    x = 34,397,126,814.88/249,656.92
  6. Step 6: Final answer
    x = 137,777.58

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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.