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Finding the Fourth Proportional to 99,058,516.40, 138,968,901.10 and 99,058,516.40

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Solution

The fourth proportional to 99,058,516.40, 138,968,901.10 and 99,058,516.40 is: 138,968,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,058,516.40 : 138,968,901.10 = 99,058,516.40 : x
  2. Step 2: Convert to fraction form
    99,058,516.40/138,968,901.10 = 99,058,516.40/x
  3. Step 3: Cross multiply
    99,058,516.40x = 138,968,901.10 × 99,058,516.40
  4. Step 4: Simplify right side
    99,058,516.40x = 13,766,053,168,704,328
  5. Step 5: Solve for x
    x = 13,766,053,168,704,328/99,058,516.40
  6. Step 6: Final answer
    x = 138,968,901.10

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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.