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Finding the Fourth Proportional to 265,153.32, 365,907.78 and 145,921.32

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Solution

The fourth proportional to 265,153.32, 365,907.78 and 145,921.32 is: 201,369.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,153.32 : 365,907.78 = 145,921.32 : x
  2. Step 2: Convert to fraction form
    265,153.32/365,907.78 = 145,921.32/x
  3. Step 3: Cross multiply
    265,153.32x = 365,907.78 × 145,921.32
  4. Step 4: Simplify right side
    265,153.32x = 53,393,746,255.87
  5. Step 5: Solve for x
    x = 53,393,746,255.87/265,153.32
  6. Step 6: Final answer
    x = 201,369.33

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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.