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Finding the Fourth Proportional to 236,447.80, 354,671.70 and 147,801.40

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Solution

The fourth proportional to 236,447.80, 354,671.70 and 147,801.40 is: 221,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,447.80 : 354,671.70 = 147,801.40 : x
  2. Step 2: Convert to fraction form
    236,447.80/354,671.70 = 147,801.40/x
  3. Step 3: Cross multiply
    236,447.80x = 354,671.70 × 147,801.40
  4. Step 4: Simplify right side
    236,447.80x = 52,420,973,800.38
  5. Step 5: Solve for x
    x = 52,420,973,800.38/236,447.80
  6. Step 6: Final answer
    x = 221,702.10

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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.