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Finding the Fourth Proportional to 249,701.40, 374,552.10 and 165,720.60

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Solution

The fourth proportional to 249,701.40, 374,552.10 and 165,720.60 is: 248,580.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,701.40 : 374,552.10 = 165,720.60 : x
  2. Step 2: Convert to fraction form
    249,701.40/374,552.10 = 165,720.60/x
  3. Step 3: Cross multiply
    249,701.40x = 374,552.10 × 165,720.60
  4. Step 4: Simplify right side
    249,701.40x = 62,070,998,743.26
  5. Step 5: Solve for x
    x = 62,070,998,743.26/249,701.40
  6. Step 6: Final answer
    x = 248,580.90

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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.