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Finding the Fourth Proportional to 121,135,563.60, 181,703,345.40 and 121,135,563.60

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Solution

The fourth proportional to 121,135,563.60, 181,703,345.40 and 121,135,563.60 is: 181,703,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,135,563.60 : 181,703,345.40 = 121,135,563.60 : x
  2. Step 2: Convert to fraction form
    121,135,563.60/181,703,345.40 = 121,135,563.60/x
  3. Step 3: Cross multiply
    121,135,563.60x = 181,703,345.40 × 121,135,563.60
  4. Step 4: Simplify right side
    121,135,563.60x = 22,010,737,153,034,468
  5. Step 5: Solve for x
    x = 22,010,737,153,034,468/121,135,563.60
  6. Step 6: Final answer
    x = 181,703,345.40

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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.