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Finding the Fourth Proportional to 64,702.69, 96,955.22 and 43,564.66

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Solution

The fourth proportional to 64,702.69, 96,955.22 and 43,564.66 is: 65,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,702.69 : 96,955.22 = 43,564.66 : x
  2. Step 2: Convert to fraction form
    64,702.69/96,955.22 = 43,564.66/x
  3. Step 3: Cross multiply
    64,702.69x = 96,955.22 × 43,564.66
  4. Step 4: Simplify right side
    64,702.69x = 4,223,820,976.70
  5. Step 5: Solve for x
    x = 4,223,820,976.70/64,702.69
  6. Step 6: Final answer
    x = 65,280.45

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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.