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Finding the Fourth Proportional to 249,091.56, 343,656.54 and 191,748.42

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Solution

The fourth proportional to 249,091.56, 343,656.54 and 191,748.42 is: 264,543.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,091.56 : 343,656.54 = 191,748.42 : x
  2. Step 2: Convert to fraction form
    249,091.56/343,656.54 = 191,748.42/x
  3. Step 3: Cross multiply
    249,091.56x = 343,656.54 × 191,748.42
  4. Step 4: Simplify right side
    249,091.56x = 65,895,598,567.67
  5. Step 5: Solve for x
    x = 65,895,598,567.67/249,091.56
  6. Step 6: Final answer
    x = 264,543.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.