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Finding the Fourth Proportional to 165,888,609.60, 248,832,914.40 and 124,682,030.40

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Solution

The fourth proportional to 165,888,609.60, 248,832,914.40 and 124,682,030.40 is: 187,023,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,888,609.60 : 248,832,914.40 = 124,682,030.40 : x
  2. Step 2: Convert to fraction form
    165,888,609.60/248,832,914.40 = 124,682,030.40/x
  3. Step 3: Cross multiply
    165,888,609.60x = 248,832,914.40 × 124,682,030.40
  4. Step 4: Simplify right side
    165,888,609.60x = 31,024,992,997,741,400
  5. Step 5: Solve for x
    x = 31,024,992,997,741,400/165,888,609.60
  6. Step 6: Final answer
    x = 187,023,045.60

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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.