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Finding the Fourth Proportional to 255,171.48, 352,180.35 and 147,807.60

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Solution

The fourth proportional to 255,171.48, 352,180.35 and 147,807.60 is: 203,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,171.48 : 352,180.35 = 147,807.60 : x
  2. Step 2: Convert to fraction form
    255,171.48/352,180.35 = 147,807.60/x
  3. Step 3: Cross multiply
    255,171.48x = 352,180.35 × 147,807.60
  4. Step 4: Simplify right side
    255,171.48x = 52,054,932,300.66
  5. Step 5: Solve for x
    x = 52,054,932,300.66/255,171.48
  6. Step 6: Final answer
    x = 203,999.81

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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.