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Finding the Fourth Proportional to 249,742.60, 374,613.90 and 165,761.80

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Solution

The fourth proportional to 249,742.60, 374,613.90 and 165,761.80 is: 248,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,742.60 : 374,613.90 = 165,761.80 : x
  2. Step 2: Convert to fraction form
    249,742.60/374,613.90 = 165,761.80/x
  3. Step 3: Cross multiply
    249,742.60x = 374,613.90 × 165,761.80
  4. Step 4: Simplify right side
    249,742.60x = 62,096,674,369.02
  5. Step 5: Solve for x
    x = 62,096,674,369.02/249,742.60
  6. Step 6: Final answer
    x = 248,642.70

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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.