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Finding the Fourth Proportional to 65,143.48, 97,720.98 and 35,548.60

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Solution

The fourth proportional to 65,143.48, 97,720.98 and 35,548.60 is: 53,326.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,143.48 : 97,720.98 = 35,548.60 : x
  2. Step 2: Convert to fraction form
    65,143.48/97,720.98 = 35,548.60/x
  3. Step 3: Cross multiply
    65,143.48x = 97,720.98 × 35,548.60
  4. Step 4: Simplify right side
    65,143.48x = 3,473,844,029.63
  5. Step 5: Solve for x
    x = 3,473,844,029.63/65,143.48
  6. Step 6: Final answer
    x = 53,326.04

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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.