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Finding the Fourth Proportional to 221,281,570.90, 331,922,356.35 and 221,281,570.90

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Solution

The fourth proportional to 221,281,570.90, 331,922,356.35 and 221,281,570.90 is: 331,922,356.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,281,570.90 : 331,922,356.35 = 221,281,570.90 : x
  2. Step 2: Convert to fraction form
    221,281,570.90/331,922,356.35 = 221,281,570.90/x
  3. Step 3: Cross multiply
    221,281,570.90x = 331,922,356.35 × 221,281,570.90
  4. Step 4: Simplify right side
    221,281,570.90x = 73,448,300,429,957,600
  5. Step 5: Solve for x
    x = 73,448,300,429,957,600/221,281,570.90
  6. Step 6: Final answer
    x = 331,922,356.35

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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.