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Finding the Fourth Proportional to 570,069.40, 855,054.90 and 170,799.76

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Solution

The fourth proportional to 570,069.40, 855,054.90 and 170,799.76 is: 256,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,069.40 : 855,054.90 = 170,799.76 : x
  2. Step 2: Convert to fraction form
    570,069.40/855,054.90 = 170,799.76/x
  3. Step 3: Cross multiply
    570,069.40x = 855,054.90 × 170,799.76
  4. Step 4: Simplify right side
    570,069.40x = 146,043,171,706.82
  5. Step 5: Solve for x
    x = 146,043,171,706.82/570,069.40
  6. Step 6: Final answer
    x = 256,184.90

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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.