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Finding the Fourth Proportional to 71,055.96, 98,060.40 and 40,851.06

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Solution

The fourth proportional to 71,055.96, 98,060.40 and 40,851.06 is: 56,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,055.96 : 98,060.40 = 40,851.06 : x
  2. Step 2: Convert to fraction form
    71,055.96/98,060.40 = 40,851.06/x
  3. Step 3: Cross multiply
    71,055.96x = 98,060.40 × 40,851.06
  4. Step 4: Simplify right side
    71,055.96x = 4,005,871,284.02
  5. Step 5: Solve for x
    x = 4,005,871,284.02/71,055.96
  6. Step 6: Final answer
    x = 56,376.29

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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.