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Finding the Fourth Proportional to 249,752.80, 374,629.20 and 91,948.60

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Solution

The fourth proportional to 249,752.80, 374,629.20 and 91,948.60 is: 137,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,752.80 : 374,629.20 = 91,948.60 : x
  2. Step 2: Convert to fraction form
    249,752.80/374,629.20 = 91,948.60/x
  3. Step 3: Cross multiply
    249,752.80x = 374,629.20 × 91,948.60
  4. Step 4: Simplify right side
    249,752.80x = 34,446,630,459.12
  5. Step 5: Solve for x
    x = 34,446,630,459.12/249,752.80
  6. Step 6: Final answer
    x = 137,922.90

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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.