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Finding the Fourth Proportional to 133,870.92, 200,858.01 and 70,688.49

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Solution

The fourth proportional to 133,870.92, 200,858.01 and 70,688.49 is: 106,060.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,870.92 : 200,858.01 = 70,688.49 : x
  2. Step 2: Convert to fraction form
    133,870.92/200,858.01 = 70,688.49/x
  3. Step 3: Cross multiply
    133,870.92x = 200,858.01 × 70,688.49
  4. Step 4: Simplify right side
    133,870.92x = 14,198,349,431.30
  5. Step 5: Solve for x
    x = 14,198,349,431.30/133,870.92
  6. Step 6: Final answer
    x = 106,060.00

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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.