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Finding the Fourth Proportional to 221,426,645.40, 332,139,968.10 and 221,426,645.40

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Solution

The fourth proportional to 221,426,645.40, 332,139,968.10 and 221,426,645.40 is: 332,139,968.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,426,645.40 : 332,139,968.10 = 221,426,645.40 : x
  2. Step 2: Convert to fraction form
    221,426,645.40/332,139,968.10 = 221,426,645.40/x
  3. Step 3: Cross multiply
    221,426,645.40x = 332,139,968.10 × 221,426,645.40
  4. Step 4: Simplify right side
    221,426,645.40x = 73,544,638,939,646,016
  5. Step 5: Solve for x
    x = 73,544,638,939,646,016/221,426,645.40
  6. Step 6: Final answer
    x = 332,139,968.10

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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.