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Finding the Fourth Proportional to 94,536.50, 130,459.81 and 51,515.90

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Solution

The fourth proportional to 94,536.50, 130,459.81 and 51,515.90 is: 71,091.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,536.50 : 130,459.81 = 51,515.90 : x
  2. Step 2: Convert to fraction form
    94,536.50/130,459.81 = 51,515.90/x
  3. Step 3: Cross multiply
    94,536.50x = 130,459.81 × 51,515.90
  4. Step 4: Simplify right side
    94,536.50x = 6,720,754,525.98
  5. Step 5: Solve for x
    x = 6,720,754,525.98/94,536.50
  6. Step 6: Final answer
    x = 71,091.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.