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Finding the Fourth Proportional to 573,087.40, 859,631.10 and 152,405.80

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Solution

The fourth proportional to 573,087.40, 859,631.10 and 152,405.80 is: 228,608.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,087.40 : 859,631.10 = 152,405.80 : x
  2. Step 2: Convert to fraction form
    573,087.40/859,631.10 = 152,405.80/x
  3. Step 3: Cross multiply
    573,087.40x = 859,631.10 × 152,405.80
  4. Step 4: Simplify right side
    573,087.40x = 131,012,765,500.38
  5. Step 5: Solve for x
    x = 131,012,765,500.38/573,087.40
  6. Step 6: Final answer
    x = 228,608.70

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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.