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Finding the Fourth Proportional to 228,213.60, 314,943.36 and 127,611.36

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Solution

The fourth proportional to 228,213.60, 314,943.36 and 127,611.36 is: 176,108.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,213.60 : 314,943.36 = 127,611.36 : x
  2. Step 2: Convert to fraction form
    228,213.60/314,943.36 = 127,611.36/x
  3. Step 3: Cross multiply
    228,213.60x = 314,943.36 × 127,611.36
  4. Step 4: Simplify right side
    228,213.60x = 40,190,350,492.57
  5. Step 5: Solve for x
    x = 40,190,350,492.57/228,213.60
  6. Step 6: Final answer
    x = 176,108.48

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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.