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Finding the Fourth Proportional to 116,043.20, 174,064.80 and 76,644.80

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Solution

The fourth proportional to 116,043.20, 174,064.80 and 76,644.80 is: 114,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,043.20 : 174,064.80 = 76,644.80 : x
  2. Step 2: Convert to fraction form
    116,043.20/174,064.80 = 76,644.80/x
  3. Step 3: Cross multiply
    116,043.20x = 174,064.80 × 76,644.80
  4. Step 4: Simplify right side
    116,043.20x = 13,341,161,783.04
  5. Step 5: Solve for x
    x = 13,341,161,783.04/116,043.20
  6. Step 6: Final answer
    x = 114,967.20

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1.5x scale

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.