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Finding the Fourth Proportional to 99,657,044.10, 149,485,566.15 and 65,644,820.10

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Solution

The fourth proportional to 99,657,044.10, 149,485,566.15 and 65,644,820.10 is: 98,467,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,044.10 : 149,485,566.15 = 65,644,820.10 : x
  2. Step 2: Convert to fraction form
    99,657,044.10/149,485,566.15 = 65,644,820.10/x
  3. Step 3: Cross multiply
    99,657,044.10x = 149,485,566.15 × 65,644,820.10
  4. Step 4: Simplify right side
    99,657,044.10x = 9,812,953,097,463,400
  5. Step 5: Solve for x
    x = 9,812,953,097,463,400/99,657,044.10
  6. Step 6: Final answer
    x = 98,467,230.15

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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.