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Finding the Fourth Proportional to 118,454.40, 177,616.80 and 48,254.40

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Solution

The fourth proportional to 118,454.40, 177,616.80 and 48,254.40 is: 72,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,454.40 : 177,616.80 = 48,254.40 : x
  2. Step 2: Convert to fraction form
    118,454.40/177,616.80 = 48,254.40/x
  3. Step 3: Cross multiply
    118,454.40x = 177,616.80 × 48,254.40
  4. Step 4: Simplify right side
    118,454.40x = 8,570,792,113.92
  5. Step 5: Solve for x
    x = 8,570,792,113.92/118,454.40
  6. Step 6: Final answer
    x = 72,355.20

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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.