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Finding the Fourth Proportional to 96,813.80, 145,220.70 and 63,636.20

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Solution

The fourth proportional to 96,813.80, 145,220.70 and 63,636.20 is: 95,454.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,813.80 : 145,220.70 = 63,636.20 : x
  2. Step 2: Convert to fraction form
    96,813.80/145,220.70 = 63,636.20/x
  3. Step 3: Cross multiply
    96,813.80x = 145,220.70 × 63,636.20
  4. Step 4: Simplify right side
    96,813.80x = 9,241,293,509.34
  5. Step 5: Solve for x
    x = 9,241,293,509.34/96,813.80
  6. Step 6: Final answer
    x = 95,454.30

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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.