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Finding the Fourth Proportional to 99,885,699.60, 149,838,528.60 and 27,103,635.60

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Solution

The fourth proportional to 99,885,699.60, 149,838,528.60 and 27,103,635.60 is: 40,658,161.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,885,699.60 : 149,838,528.60 = 27,103,635.60 : x
  2. Step 2: Convert to fraction form
    99,885,699.60/149,838,528.60 = 27,103,635.60/x
  3. Step 3: Cross multiply
    99,885,699.60x = 149,838,528.60 × 27,103,635.60
  4. Step 4: Simplify right side
    99,885,699.60x = 4,061,168,878,014,578
  5. Step 5: Solve for x
    x = 4,061,168,878,014,578/99,885,699.60
  6. Step 6: Final answer
    x = 40,658,161.22

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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.