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Finding the Fourth Proportional to 68,341.64, 94,370.79 and 42,892.11

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Solution

The fourth proportional to 68,341.64, 94,370.79 and 42,892.11 is: 59,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341.64 : 94,370.79 = 42,892.11 : x
  2. Step 2: Convert to fraction form
    68,341.64/94,370.79 = 42,892.11/x
  3. Step 3: Cross multiply
    68,341.64x = 94,370.79 × 42,892.11
  4. Step 4: Simplify right side
    68,341.64x = 4,047,762,305.47
  5. Step 5: Solve for x
    x = 4,047,762,305.47/68,341.64
  6. Step 6: Final answer
    x = 59,228.35

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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.