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Finding the Fourth Proportional to 161,556.80, 242,479.20 and 94,913.60

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Solution

The fourth proportional to 161,556.80, 242,479.20 and 94,913.60 is: 142,455.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,556.80 : 242,479.20 = 94,913.60 : x
  2. Step 2: Convert to fraction form
    161,556.80/242,479.20 = 94,913.60/x
  3. Step 3: Cross multiply
    161,556.80x = 242,479.20 × 94,913.60
  4. Step 4: Simplify right side
    161,556.80x = 23,014,573,797.12
  5. Step 5: Solve for x
    x = 23,014,573,797.12/161,556.80
  6. Step 6: Final answer
    x = 142,455.00

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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.