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Finding the Fourth Proportional to 65,079.60, 97,674.82 and 46,405.39

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Solution

The fourth proportional to 65,079.60, 97,674.82 and 46,405.39 is: 69,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,079.60 : 97,674.82 = 46,405.39 : x
  2. Step 2: Convert to fraction form
    65,079.60/97,674.82 = 46,405.39/x
  3. Step 3: Cross multiply
    65,079.60x = 97,674.82 × 46,405.39
  4. Step 4: Simplify right side
    65,079.60x = 4,532,638,115.28
  5. Step 5: Solve for x
    x = 4,532,638,115.28/65,079.60
  6. Step 6: Final answer
    x = 69,647.60

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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.