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Finding the Fourth Proportional to 100,602,313.20, 150,903,469.80 and 71,376,994.80

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Solution

The fourth proportional to 100,602,313.20, 150,903,469.80 and 71,376,994.80 is: 107,065,492.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,602,313.20 : 150,903,469.80 = 71,376,994.80 : x
  2. Step 2: Convert to fraction form
    100,602,313.20/150,903,469.80 = 71,376,994.80/x
  3. Step 3: Cross multiply
    100,602,313.20x = 150,903,469.80 × 71,376,994.80
  4. Step 4: Simplify right side
    100,602,313.20x = 10,771,036,179,216,558
  5. Step 5: Solve for x
    x = 10,771,036,179,216,558/100,602,313.20
  6. Step 6: Final answer
    x = 107,065,492.20

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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.