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Finding the Fourth Proportional to 50,688,533.40, 71,143,105.80 and 50,688,533.40

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Solution

The fourth proportional to 50,688,533.40, 71,143,105.80 and 50,688,533.40 is: 71,143,105.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,688,533.40 : 71,143,105.80 = 50,688,533.40 : x
  2. Step 2: Convert to fraction form
    50,688,533.40/71,143,105.80 = 50,688,533.40/x
  3. Step 3: Cross multiply
    50,688,533.40x = 71,143,105.80 × 50,688,533.40
  4. Step 4: Simplify right side
    50,688,533.40x = 3,606,139,694,523,033.50
  5. Step 5: Solve for x
    x = 3,606,139,694,523,033.50/50,688,533.40
  6. Step 6: Final answer
    x = 71,143,105.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.