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Finding the Fourth Proportional to 256,053.88, 353,520.80 and 229,150.14

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Solution

The fourth proportional to 256,053.88, 353,520.80 and 229,150.14 is: 316,376.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,053.88 : 353,520.80 = 229,150.14 : x
  2. Step 2: Convert to fraction form
    256,053.88/353,520.80 = 229,150.14/x
  3. Step 3: Cross multiply
    256,053.88x = 353,520.80 × 229,150.14
  4. Step 4: Simplify right side
    256,053.88x = 81,009,340,501.99
  5. Step 5: Solve for x
    x = 81,009,340,501.99/256,053.88
  6. Step 6: Final answer
    x = 316,376.15

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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.