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Finding the Fourth Proportional to 109,807.92, 164,799.36 and 43,264.80

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Solution

The fourth proportional to 109,807.92, 164,799.36 and 43,264.80 is: 64,931.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,807.92 : 164,799.36 = 43,264.80 : x
  2. Step 2: Convert to fraction form
    109,807.92/164,799.36 = 43,264.80/x
  3. Step 3: Cross multiply
    109,807.92x = 164,799.36 × 43,264.80
  4. Step 4: Simplify right side
    109,807.92x = 7,130,011,350.53
  5. Step 5: Solve for x
    x = 7,130,011,350.53/109,807.92
  6. Step 6: Final answer
    x = 64,931.67

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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.