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Finding the Fourth Proportional to 66,490.93, 99,683.88 and 33,192.64

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Solution

The fourth proportional to 66,490.93, 99,683.88 and 33,192.64 is: 49,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,490.93 : 99,683.88 = 33,192.64 : x
  2. Step 2: Convert to fraction form
    66,490.93/99,683.88 = 33,192.64/x
  3. Step 3: Cross multiply
    66,490.93x = 99,683.88 × 33,192.64
  4. Step 4: Simplify right side
    66,490.93x = 3,308,771,142.64
  5. Step 5: Solve for x
    x = 3,308,771,142.64/66,490.93
  6. Step 6: Final answer
    x = 49,762.74

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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.