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Finding the Fourth Proportional to 67,068,007.80, 100,602,011.70 and 19,198,951.80

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Solution

The fourth proportional to 67,068,007.80, 100,602,011.70 and 19,198,951.80 is: 28,798,427.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,007.80 : 100,602,011.70 = 19,198,951.80 : x
  2. Step 2: Convert to fraction form
    67,068,007.80/100,602,011.70 = 19,198,951.80/x
  3. Step 3: Cross multiply
    67,068,007.80x = 100,602,011.70 × 19,198,951.80
  4. Step 4: Simplify right side
    67,068,007.80x = 1,931,453,173,611,336.25
  5. Step 5: Solve for x
    x = 1,931,453,173,611,336.25/67,068,007.80
  6. Step 6: Final answer
    x = 28,798,427.70

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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.