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Finding the Fourth Proportional to 67,068,019.60, 100,602,029.40 and 48,786,449.20

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Solution

The fourth proportional to 67,068,019.60, 100,602,029.40 and 48,786,449.20 is: 73,179,673.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,019.60 : 100,602,029.40 = 48,786,449.20 : x
  2. Step 2: Convert to fraction form
    67,068,019.60/100,602,029.40 = 48,786,449.20/x
  3. Step 3: Cross multiply
    67,068,019.60x = 100,602,029.40 × 48,786,449.20
  4. Step 4: Simplify right side
    67,068,019.60x = 4,908,015,796,740,007
  5. Step 5: Solve for x
    x = 4,908,015,796,740,007/67,068,019.60
  6. Step 6: Final answer
    x = 73,179,673.80

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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.