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Finding the Fourth Proportional to 158,492,732.30, 221,436,328.90 and 158,492,732.30

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Solution

The fourth proportional to 158,492,732.30, 221,436,328.90 and 158,492,732.30 is: 221,436,328.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,492,732.30 : 221,436,328.90 = 158,492,732.30 : x
  2. Step 2: Convert to fraction form
    158,492,732.30/221,436,328.90 = 158,492,732.30/x
  3. Step 3: Cross multiply
    158,492,732.30x = 221,436,328.90 × 158,492,732.30
  4. Step 4: Simplify right side
    158,492,732.30x = 35,096,048,797,842,456
  5. Step 5: Solve for x
    x = 35,096,048,797,842,456/158,492,732.30
  6. Step 6: Final answer
    x = 221,436,328.90

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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.