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Finding the Fourth Proportional to 173,124.84, 259,720.92 and 66,501

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Solution

The fourth proportional to 173,124.84, 259,720.92 and 66,501 is: 99,764.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,124.84 : 259,720.92 = 66,501 : x
  2. Step 2: Convert to fraction form
    173,124.84/259,720.92 = 66,501/x
  3. Step 3: Cross multiply
    173,124.84x = 259,720.92 × 66,501
  4. Step 4: Simplify right side
    173,124.84x = 17,271,700,900.92
  5. Step 5: Solve for x
    x = 17,271,700,900.92/173,124.84
  6. Step 6: Final answer
    x = 99,764.43

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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.