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Finding the Fourth Proportional to 236,196,651.60, 354,294,977.40 and 208,455,431.40

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Solution

The fourth proportional to 236,196,651.60, 354,294,977.40 and 208,455,431.40 is: 312,683,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,196,651.60 : 354,294,977.40 = 208,455,431.40 : x
  2. Step 2: Convert to fraction form
    236,196,651.60/354,294,977.40 = 208,455,431.40/x
  3. Step 3: Cross multiply
    236,196,651.60x = 354,294,977.40 × 208,455,431.40
  4. Step 4: Simplify right side
    236,196,651.60x = 73,854,712,356,770,240
  5. Step 5: Solve for x
    x = 73,854,712,356,770,240/236,196,651.60
  6. Step 6: Final answer
    x = 312,683,147.10

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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.