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Finding the Fourth Proportional to 68,463.81, 102,546.27 and 42,088.59

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Solution

The fourth proportional to 68,463.81, 102,546.27 and 42,088.59 is: 63,041.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,463.81 : 102,546.27 = 42,088.59 : x
  2. Step 2: Convert to fraction form
    68,463.81/102,546.27 = 42,088.59/x
  3. Step 3: Cross multiply
    68,463.81x = 102,546.27 × 42,088.59
  4. Step 4: Simplify right side
    68,463.81x = 4,316,027,914.06
  5. Step 5: Solve for x
    x = 4,316,027,914.06/68,463.81
  6. Step 6: Final answer
    x = 63,041.01

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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.