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Finding the Fourth Proportional to 221,301,095.20, 310,275,029.60 and 221,301,095.20

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Solution

The fourth proportional to 221,301,095.20, 310,275,029.60 and 221,301,095.20 is: 310,275,029.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,301,095.20 : 310,275,029.60 = 221,301,095.20 : x
  2. Step 2: Convert to fraction form
    221,301,095.20/310,275,029.60 = 221,301,095.20/x
  3. Step 3: Cross multiply
    221,301,095.20x = 310,275,029.60 × 221,301,095.20
  4. Step 4: Simplify right side
    221,301,095.20x = 68,664,203,863,692,416
  5. Step 5: Solve for x
    x = 68,664,203,863,692,416/221,301,095.20
  6. Step 6: Final answer
    x = 310,275,029.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.