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Finding the Fourth Proportional to 158,193,000.90, 221,621,366.70 and 158,193,000.90

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Solution

The fourth proportional to 158,193,000.90, 221,621,366.70 and 158,193,000.90 is: 221,621,366.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,193,000.90 : 221,621,366.70 = 158,193,000.90 : x
  2. Step 2: Convert to fraction form
    158,193,000.90/221,621,366.70 = 158,193,000.90/x
  3. Step 3: Cross multiply
    158,193,000.90x = 221,621,366.70 × 158,193,000.90
  4. Step 4: Simplify right side
    158,193,000.90x = 35,058,949,061,832,328
  5. Step 5: Solve for x
    x = 35,058,949,061,832,328/158,193,000.90
  6. Step 6: Final answer
    x = 221,621,366.70

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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.