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Finding the Fourth Proportional to 228,118.25, 314,803.19 and 127,516.25

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Solution

The fourth proportional to 228,118.25, 314,803.19 and 127,516.25 is: 175,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,118.25 : 314,803.19 = 127,516.25 : x
  2. Step 2: Convert to fraction form
    228,118.25/314,803.19 = 127,516.25/x
  3. Step 3: Cross multiply
    228,118.25x = 314,803.19 × 127,516.25
  4. Step 4: Simplify right side
    228,118.25x = 40,142,522,276.84
  5. Step 5: Solve for x
    x = 40,142,522,276.84/228,118.25
  6. Step 6: Final answer
    x = 175,972.43

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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.