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Finding the Fourth Proportional to 65,851.84, 90,851.02 and 43,203.43

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Solution

The fourth proportional to 65,851.84, 90,851.02 and 43,203.43 is: 59,604.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,851.84 : 90,851.02 = 43,203.43 : x
  2. Step 2: Convert to fraction form
    65,851.84/90,851.02 = 43,203.43/x
  3. Step 3: Cross multiply
    65,851.84x = 90,851.02 × 43,203.43
  4. Step 4: Simplify right side
    65,851.84x = 3,925,075,683.00
  5. Step 5: Solve for x
    x = 3,925,075,683.00/65,851.84
  6. Step 6: Final answer
    x = 59,604.65

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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.