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Finding the Fourth Proportional to 96,630.80, 145,018.20 and 49,859.60

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Solution

The fourth proportional to 96,630.80, 145,018.20 and 49,859.60 is: 74,826.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,630.80 : 145,018.20 = 49,859.60 : x
  2. Step 2: Convert to fraction form
    96,630.80/145,018.20 = 49,859.60/x
  3. Step 3: Cross multiply
    96,630.80x = 145,018.20 × 49,859.60
  4. Step 4: Simplify right side
    96,630.80x = 7,230,549,444.72
  5. Step 5: Solve for x
    x = 7,230,549,444.72/96,630.80
  6. Step 6: Final answer
    x = 74,826.55

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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.