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Finding the Fourth Proportional to 65,116.80, 97,675.20 and 49,370.40

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Solution

The fourth proportional to 65,116.80, 97,675.20 and 49,370.40 is: 74,055.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,116.80 : 97,675.20 = 49,370.40 : x
  2. Step 2: Convert to fraction form
    65,116.80/97,675.20 = 49,370.40/x
  3. Step 3: Cross multiply
    65,116.80x = 97,675.20 × 49,370.40
  4. Step 4: Simplify right side
    65,116.80x = 4,822,263,694.08
  5. Step 5: Solve for x
    x = 4,822,263,694.08/65,116.80
  6. Step 6: Final answer
    x = 74,055.60

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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.