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Finding the Fourth Proportional to 99,504.97, 149,277.15 and 28,428.22

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Solution

The fourth proportional to 99,504.97, 149,277.15 and 28,428.22 is: 42,647.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,504.97 : 149,277.15 = 28,428.22 : x
  2. Step 2: Convert to fraction form
    99,504.97/149,277.15 = 28,428.22/x
  3. Step 3: Cross multiply
    99,504.97x = 149,277.15 × 28,428.22
  4. Step 4: Simplify right side
    99,504.97x = 4,243,683,847.77
  5. Step 5: Solve for x
    x = 4,243,683,847.77/99,504.97
  6. Step 6: Final answer
    x = 42,647.96

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1.5x scale

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.