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Finding the Fourth Proportional to 185,220.90, 277,831.35 and 66,896.10

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Solution

The fourth proportional to 185,220.90, 277,831.35 and 66,896.10 is: 100,344.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,220.90 : 277,831.35 = 66,896.10 : x
  2. Step 2: Convert to fraction form
    185,220.90/277,831.35 = 66,896.10/x
  3. Step 3: Cross multiply
    185,220.90x = 277,831.35 × 66,896.10
  4. Step 4: Simplify right side
    185,220.90x = 18,585,833,772.74
  5. Step 5: Solve for x
    x = 18,585,833,772.74/185,220.90
  6. Step 6: Final answer
    x = 100,344.15

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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.