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Finding the Fourth Proportional to 255,611.12, 352,744.75 and 148,244.81

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Solution

The fourth proportional to 255,611.12, 352,744.75 and 148,244.81 is: 204,578.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,611.12 : 352,744.75 = 148,244.81 : x
  2. Step 2: Convert to fraction form
    255,611.12/352,744.75 = 148,244.81/x
  3. Step 3: Cross multiply
    255,611.12x = 352,744.75 × 148,244.81
  4. Step 4: Simplify right side
    255,611.12x = 52,292,577,701.02
  5. Step 5: Solve for x
    x = 52,292,577,701.02/255,611.12
  6. Step 6: Final answer
    x = 204,578.65

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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.