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Finding the Fourth Proportional to 249,845.60, 374,638.80 and 91,992.80

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Solution

The fourth proportional to 249,845.60, 374,638.80 and 91,992.80 is: 137,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,845.60 : 374,638.80 = 91,992.80 : x
  2. Step 2: Convert to fraction form
    249,845.60/374,638.80 = 91,992.80/x
  3. Step 3: Cross multiply
    249,845.60x = 374,638.80 × 91,992.80
  4. Step 4: Simplify right side
    249,845.60x = 34,464,072,200.64
  5. Step 5: Solve for x
    x = 34,464,072,200.64/249,845.60
  6. Step 6: Final answer
    x = 137,941.48

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1.5x scale

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.