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Finding the Fourth Proportional to 323,412,411.40, 485,181,602.70 and 93,389,000.20

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Solution

The fourth proportional to 323,412,411.40, 485,181,602.70 and 93,389,000.20 is: 140,101,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,412,411.40 : 485,181,602.70 = 93,389,000.20 : x
  2. Step 2: Convert to fraction form
    323,412,411.40/485,181,602.70 = 93,389,000.20/x
  3. Step 3: Cross multiply
    323,412,411.40x = 485,181,602.70 × 93,389,000.20
  4. Step 4: Simplify right side
    323,412,411.40x = 45,310,624,791,586,624
  5. Step 5: Solve for x
    x = 45,310,624,791,586,624/323,412,411.40
  6. Step 6: Final answer
    x = 140,101,688.11

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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.