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Finding the Fourth Proportional to 265,140.25, 365,893.61 and 145,908.25

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Solution

The fourth proportional to 265,140.25, 365,893.61 and 145,908.25 is: 201,353.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,140.25 : 365,893.61 = 145,908.25 : x
  2. Step 2: Convert to fraction form
    265,140.25/365,893.61 = 145,908.25/x
  3. Step 3: Cross multiply
    265,140.25x = 365,893.61 × 145,908.25
  4. Step 4: Simplify right side
    265,140.25x = 53,386,895,591.74
  5. Step 5: Solve for x
    x = 53,386,895,591.74/265,140.25
  6. Step 6: Final answer
    x = 201,353.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.