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Finding the Fourth Proportional to 121,118,083.60, 181,677,125.40 and 121,118,083.60

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Solution

The fourth proportional to 121,118,083.60, 181,677,125.40 and 121,118,083.60 is: 181,677,125.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,118,083.60 : 181,677,125.40 = 121,118,083.60 : x
  2. Step 2: Convert to fraction form
    121,118,083.60/181,677,125.40 = 121,118,083.60/x
  3. Step 3: Cross multiply
    121,118,083.60x = 181,677,125.40 × 121,118,083.60
  4. Step 4: Simplify right side
    121,118,083.60x = 22,004,385,262,404,884
  5. Step 5: Solve for x
    x = 22,004,385,262,404,884/121,118,083.60
  6. Step 6: Final answer
    x = 181,677,125.40

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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.