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Finding the Fourth Proportional to 66,798.08, 92,243.80 and 42,966.14

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Solution

The fourth proportional to 66,798.08, 92,243.80 and 42,966.14 is: 59,333.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798.08 : 92,243.80 = 42,966.14 : x
  2. Step 2: Convert to fraction form
    66,798.08/92,243.80 = 42,966.14/x
  3. Step 3: Cross multiply
    66,798.08x = 92,243.80 × 42,966.14
  4. Step 4: Simplify right side
    66,798.08x = 3,963,360,024.93
  5. Step 5: Solve for x
    x = 3,963,360,024.93/66,798.08
  6. Step 6: Final answer
    x = 59,333.44

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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.