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Finding the Fourth Proportional to 120,816,191.60, 181,224,287.40 and 120,816,191.60

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Solution

The fourth proportional to 120,816,191.60, 181,224,287.40 and 120,816,191.60 is: 181,224,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,816,191.60 : 181,224,287.40 = 120,816,191.60 : x
  2. Step 2: Convert to fraction form
    120,816,191.60/181,224,287.40 = 120,816,191.60/x
  3. Step 3: Cross multiply
    120,816,191.60x = 181,224,287.40 × 120,816,191.60
  4. Step 4: Simplify right side
    120,816,191.60x = 21,894,828,229,091,864
  5. Step 5: Solve for x
    x = 21,894,828,229,091,864/120,816,191.60
  6. Step 6: Final answer
    x = 181,224,287.40

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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.