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Finding the Fourth Proportional to 220,141,401.30, 330,212,101.95 and 147,581,990.10

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Solution

The fourth proportional to 220,141,401.30, 330,212,101.95 and 147,581,990.10 is: 221,372,985.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,141,401.30 : 330,212,101.95 = 147,581,990.10 : x
  2. Step 2: Convert to fraction form
    220,141,401.30/330,212,101.95 = 147,581,990.10/x
  3. Step 3: Cross multiply
    220,141,401.30x = 330,212,101.95 × 147,581,990.10
  4. Step 4: Simplify right side
    220,141,401.30x = 48,733,359,160,885,088
  5. Step 5: Solve for x
    x = 48,733,359,160,885,088/220,141,401.30
  6. Step 6: Final answer
    x = 221,372,985.15

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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.