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Finding the Fourth Proportional to 101,088.51, 139,457.04 and 58,622.43

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Solution

The fourth proportional to 101,088.51, 139,457.04 and 58,622.43 is: 80,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,088.51 : 139,457.04 = 58,622.43 : x
  2. Step 2: Convert to fraction form
    101,088.51/139,457.04 = 58,622.43/x
  3. Step 3: Cross multiply
    101,088.51x = 139,457.04 × 58,622.43
  4. Step 4: Simplify right side
    101,088.51x = 8,175,310,565.41
  5. Step 5: Solve for x
    x = 8,175,310,565.41/101,088.51
  6. Step 6: Final answer
    x = 80,872.80

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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.