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Finding the Fourth Proportional to 354,533.34, 531,799.72 and 105,215.34

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Solution

The fourth proportional to 354,533.34, 531,799.72 and 105,215.34 is: 157,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,533.34 : 531,799.72 = 105,215.34 : x
  2. Step 2: Convert to fraction form
    354,533.34/531,799.72 = 105,215.34/x
  3. Step 3: Cross multiply
    354,533.34x = 531,799.72 × 105,215.34
  4. Step 4: Simplify right side
    354,533.34x = 55,953,488,351.70
  5. Step 5: Solve for x
    x = 55,953,488,351.70/354,533.34
  6. Step 6: Final answer
    x = 157,822.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.