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Finding the Fourth Proportional to 112,000,478.80, 167,868,007.80 and 47,304,158.80

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Solution

The fourth proportional to 112,000,478.80, 167,868,007.80 and 47,304,158.80 is: 70,900,187.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000,478.80 : 167,868,007.80 = 47,304,158.80 : x
  2. Step 2: Convert to fraction form
    112,000,478.80/167,868,007.80 = 47,304,158.80/x
  3. Step 3: Cross multiply
    112,000,478.80x = 167,868,007.80 × 47,304,158.80
  4. Step 4: Simplify right side
    112,000,478.80x = 7,940,854,898,410,839
  5. Step 5: Solve for x
    x = 7,940,854,898,410,839/112,000,478.80
  6. Step 6: Final answer
    x = 70,900,187.07

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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.