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Finding the Fourth Proportional to 66,798.09, 92,243.81 and 42,966.13

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Solution

The fourth proportional to 66,798.09, 92,243.81 and 42,966.13 is: 59,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798.09 : 92,243.81 = 42,966.13 : x
  2. Step 2: Convert to fraction form
    66,798.09/92,243.81 = 42,966.13/x
  3. Step 3: Cross multiply
    66,798.09x = 92,243.81 × 42,966.13
  4. Step 4: Simplify right side
    66,798.09x = 3,963,359,532.16
  5. Step 5: Solve for x
    x = 3,963,359,532.16/66,798.09
  6. Step 6: Final answer
    x = 59,333.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.