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Finding the Fourth Proportional to 255,326.32, 352,296.90 and 147,889.94

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Solution

The fourth proportional to 255,326.32, 352,296.90 and 147,889.94 is: 204,057.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,326.32 : 352,296.90 = 147,889.94 : x
  2. Step 2: Convert to fraction form
    255,326.32/352,296.90 = 147,889.94/x
  3. Step 3: Cross multiply
    255,326.32x = 352,296.90 × 147,889.94
  4. Step 4: Simplify right side
    255,326.32x = 52,101,167,403.19
  5. Step 5: Solve for x
    x = 52,101,167,403.19/255,326.32
  6. Step 6: Final answer
    x = 204,057.17

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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.