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Finding the Fourth Proportional to 255,256.11, 352,237.59 and 147,807.45

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Solution

The fourth proportional to 255,256.11, 352,237.59 and 147,807.45 is: 203,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,256.11 : 352,237.59 = 147,807.45 : x
  2. Step 2: Convert to fraction form
    255,256.11/352,237.59 = 147,807.45/x
  3. Step 3: Cross multiply
    255,256.11x = 352,237.59 × 147,807.45
  4. Step 4: Simplify right side
    255,256.11x = 52,063,339,972.05
  5. Step 5: Solve for x
    x = 52,063,339,972.05/255,256.11
  6. Step 6: Final answer
    x = 203,965.11

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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.