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Finding the Fourth Proportional to 105,763.20, 158,644.80 and 101,097.60

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Solution

The fourth proportional to 105,763.20, 158,644.80 and 101,097.60 is: 151,646.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,763.20 : 158,644.80 = 101,097.60 : x
  2. Step 2: Convert to fraction form
    105,763.20/158,644.80 = 101,097.60/x
  3. Step 3: Cross multiply
    105,763.20x = 158,644.80 × 101,097.60
  4. Step 4: Simplify right side
    105,763.20x = 16,038,608,532.48
  5. Step 5: Solve for x
    x = 16,038,608,532.48/105,763.20
  6. Step 6: Final answer
    x = 151,646.40

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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.