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Finding the Fourth Proportional to 243,122.70, 364,574.70 and 93,313.20

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Solution

The fourth proportional to 243,122.70, 364,574.70 and 93,313.20 is: 139,927.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,122.70 : 364,574.70 = 93,313.20 : x
  2. Step 2: Convert to fraction form
    243,122.70/364,574.70 = 93,313.20/x
  3. Step 3: Cross multiply
    243,122.70x = 364,574.70 × 93,313.20
  4. Step 4: Simplify right side
    243,122.70x = 34,019,631,896.04
  5. Step 5: Solve for x
    x = 34,019,631,896.04/243,122.70
  6. Step 6: Final answer
    x = 139,927.83

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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.