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Finding the Fourth Proportional to 228,991.20, 316,008.72 and 127,026.06

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Solution

The fourth proportional to 228,991.20, 316,008.72 and 127,026.06 is: 175,296.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,991.20 : 316,008.72 = 127,026.06 : x
  2. Step 2: Convert to fraction form
    228,991.20/316,008.72 = 127,026.06/x
  3. Step 3: Cross multiply
    228,991.20x = 316,008.72 × 127,026.06
  4. Step 4: Simplify right side
    228,991.20x = 40,141,342,627.24
  5. Step 5: Solve for x
    x = 40,141,342,627.24/228,991.20
  6. Step 6: Final answer
    x = 175,296.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.