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Finding the Fourth Proportional to 223,953,728.40, 335,880,178.20 and 80,346,560.40

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Solution

The fourth proportional to 223,953,728.40, 335,880,178.20 and 80,346,560.40 is: 120,501,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,953,728.40 : 335,880,178.20 = 80,346,560.40 : x
  2. Step 2: Convert to fraction form
    223,953,728.40/335,880,178.20 = 80,346,560.40/x
  3. Step 3: Cross multiply
    223,953,728.40x = 335,880,178.20 × 80,346,560.40
  4. Step 4: Simplify right side
    223,953,728.40x = 26,986,817,024,909,064
  5. Step 5: Solve for x
    x = 26,986,817,024,909,064/223,953,728.40
  6. Step 6: Final answer
    x = 120,501,753.72

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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.