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Finding the Fourth Proportional to 163,718.40, 244,963.20 and 148,972.80

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Solution

The fourth proportional to 163,718.40, 244,963.20 and 148,972.80 is: 222,900.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,718.40 : 244,963.20 = 148,972.80 : x
  2. Step 2: Convert to fraction form
    163,718.40/244,963.20 = 148,972.80/x
  3. Step 3: Cross multiply
    163,718.40x = 244,963.20 × 148,972.80
  4. Step 4: Simplify right side
    163,718.40x = 36,492,853,800.96
  5. Step 5: Solve for x
    x = 36,492,853,800.96/163,718.40
  6. Step 6: Final answer
    x = 222,900.14

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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.