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Finding the Fourth Proportional to 255,228.30, 352,235.40 and 147,800.24

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Solution

The fourth proportional to 255,228.30, 352,235.40 and 147,800.24 is: 203,976.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,228.30 : 352,235.40 = 147,800.24 : x
  2. Step 2: Convert to fraction form
    255,228.30/352,235.40 = 147,800.24/x
  3. Step 3: Cross multiply
    255,228.30x = 352,235.40 × 147,800.24
  4. Step 4: Simplify right side
    255,228.30x = 52,060,476,656.50
  5. Step 5: Solve for x
    x = 52,060,476,656.50/255,228.30
  6. Step 6: Final answer
    x = 203,976.11

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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.