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Finding the Fourth Proportional to 221,426,647.40, 332,139,971.10 and 221,426,647.40

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Solution

The fourth proportional to 221,426,647.40, 332,139,971.10 and 221,426,647.40 is: 332,139,971.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,426,647.40 : 332,139,971.10 = 221,426,647.40 : x
  2. Step 2: Convert to fraction form
    221,426,647.40/332,139,971.10 = 221,426,647.40/x
  3. Step 3: Cross multiply
    221,426,647.40x = 332,139,971.10 × 221,426,647.40
  4. Step 4: Simplify right side
    221,426,647.40x = 73,544,640,268,205,904
  5. Step 5: Solve for x
    x = 73,544,640,268,205,904/221,426,647.40
  6. Step 6: Final answer
    x = 332,139,971.10

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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.