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Finding the Fourth Proportional to 256,303.44, 353,684.10 and 153,054.14

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Solution

The fourth proportional to 256,303.44, 353,684.10 and 153,054.14 is: 211,205.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,303.44 : 353,684.10 = 153,054.14 : x
  2. Step 2: Convert to fraction form
    256,303.44/353,684.10 = 153,054.14/x
  3. Step 3: Cross multiply
    256,303.44x = 353,684.10 × 153,054.14
  4. Step 4: Simplify right side
    256,303.44x = 54,132,815,757.17
  5. Step 5: Solve for x
    x = 54,132,815,757.17/256,303.44
  6. Step 6: Final answer
    x = 211,205.97

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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.