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Finding the Fourth Proportional to 93,247,997.80, 139,871,996.70 and 87,276,029.80

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Solution

The fourth proportional to 93,247,997.80, 139,871,996.70 and 87,276,029.80 is: 130,914,044.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,247,997.80 : 139,871,996.70 = 87,276,029.80 : x
  2. Step 2: Convert to fraction form
    93,247,997.80/139,871,996.70 = 87,276,029.80/x
  3. Step 3: Cross multiply
    93,247,997.80x = 139,871,996.70 × 87,276,029.80
  4. Step 4: Simplify right side
    93,247,997.80x = 12,207,472,552,174,700
  5. Step 5: Solve for x
    x = 12,207,472,552,174,700/93,247,997.80
  6. Step 6: Final answer
    x = 130,914,044.70

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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.