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Finding the Fourth Proportional to 573,120.80, 859,688.40 and 173,765.60

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Solution

The fourth proportional to 573,120.80, 859,688.40 and 173,765.60 is: 260,650.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,120.80 : 859,688.40 = 173,765.60 : x
  2. Step 2: Convert to fraction form
    573,120.80/859,688.40 = 173,765.60/x
  3. Step 3: Cross multiply
    573,120.80x = 859,688.40 × 173,765.60
  4. Step 4: Simplify right side
    573,120.80x = 149,384,270,639.04
  5. Step 5: Solve for x
    x = 149,384,270,639.04/573,120.80
  6. Step 6: Final answer
    x = 260,650.58

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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.