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Finding the Fourth Proportional to 249,793.60, 374,690.40 and 165,812.80

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Solution

The fourth proportional to 249,793.60, 374,690.40 and 165,812.80 is: 248,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,793.60 : 374,690.40 = 165,812.80 : x
  2. Step 2: Convert to fraction form
    249,793.60/374,690.40 = 165,812.80/x
  3. Step 3: Cross multiply
    249,793.60x = 374,690.40 × 165,812.80
  4. Step 4: Simplify right side
    249,793.60x = 62,128,464,357.12
  5. Step 5: Solve for x
    x = 62,128,464,357.12/249,793.60
  6. Step 6: Final answer
    x = 248,719.20

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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.