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Finding the Fourth Proportional to 93,485,807.70, 140,228,711.55 and 50,439,086.70

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Solution

The fourth proportional to 93,485,807.70, 140,228,711.55 and 50,439,086.70 is: 75,658,630.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,485,807.70 : 140,228,711.55 = 50,439,086.70 : x
  2. Step 2: Convert to fraction form
    93,485,807.70/140,228,711.55 = 50,439,086.70/x
  3. Step 3: Cross multiply
    93,485,807.70x = 140,228,711.55 × 50,439,086.70
  4. Step 4: Simplify right side
    93,485,807.70x = 7,073,008,139,699,742
  5. Step 5: Solve for x
    x = 7,073,008,139,699,742/93,485,807.70
  6. Step 6: Final answer
    x = 75,658,630.05

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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.