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Finding the Fourth Proportional to 474,185.70, 711,130.47 and 158,568.90

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Solution

The fourth proportional to 474,185.70, 711,130.47 and 158,568.90 is: 237,803.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,185.70 : 711,130.47 = 158,568.90 : x
  2. Step 2: Convert to fraction form
    474,185.70/711,130.47 = 158,568.90/x
  3. Step 3: Cross multiply
    474,185.70x = 711,130.47 × 158,568.90
  4. Step 4: Simplify right side
    474,185.70x = 112,763,176,384.38
  5. Step 5: Solve for x
    x = 112,763,176,384.38/474,185.70
  6. Step 6: Final answer
    x = 237,803.83

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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.