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Finding the Fourth Proportional to 559,425.60, 839,138.40 and 185,448.60

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Solution

The fourth proportional to 559,425.60, 839,138.40 and 185,448.60 is: 278,172.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,425.60 : 839,138.40 = 185,448.60 : x
  2. Step 2: Convert to fraction form
    559,425.60/839,138.40 = 185,448.60/x
  3. Step 3: Cross multiply
    559,425.60x = 839,138.40 × 185,448.60
  4. Step 4: Simplify right side
    559,425.60x = 155,617,041,486.24
  5. Step 5: Solve for x
    x = 155,617,041,486.24/559,425.60
  6. Step 6: Final answer
    x = 278,172.90

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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.