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Finding the Fourth Proportional to 155,244.96, 232,672.64 and 66,393.99

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Solution

The fourth proportional to 155,244.96, 232,672.64 and 66,393.99 is: 99,507.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,244.96 : 232,672.64 = 66,393.99 : x
  2. Step 2: Convert to fraction form
    155,244.96/232,672.64 = 66,393.99/x
  3. Step 3: Cross multiply
    155,244.96x = 232,672.64 × 66,393.99
  4. Step 4: Simplify right side
    155,244.96x = 15,448,064,601.46
  5. Step 5: Solve for x
    x = 15,448,064,601.46/155,244.96
  6. Step 6: Final answer
    x = 99,507.67

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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.