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Finding the Fourth Proportional to 134,808.64, 202,213.80 and 59,911.20

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Solution

The fourth proportional to 134,808.64, 202,213.80 and 59,911.20 is: 89,867.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,808.64 : 202,213.80 = 59,911.20 : x
  2. Step 2: Convert to fraction form
    134,808.64/202,213.80 = 59,911.20/x
  3. Step 3: Cross multiply
    134,808.64x = 202,213.80 × 59,911.20
  4. Step 4: Simplify right side
    134,808.64x = 12,114,871,414.56
  5. Step 5: Solve for x
    x = 12,114,871,414.56/134,808.64
  6. Step 6: Final answer
    x = 89,867.17

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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.