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Finding the Fourth Proportional to 175,816.80, 263,530.80 and 96,987.60

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Solution

The fourth proportional to 175,816.80, 263,530.80 and 96,987.60 is: 145,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,816.80 : 263,530.80 = 96,987.60 : x
  2. Step 2: Convert to fraction form
    175,816.80/263,530.80 = 96,987.60/x
  3. Step 3: Cross multiply
    175,816.80x = 263,530.80 × 96,987.60
  4. Step 4: Simplify right side
    175,816.80x = 25,559,219,818.08
  5. Step 5: Solve for x
    x = 25,559,219,818.08/175,816.80
  6. Step 6: Final answer
    x = 145,374.16

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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.