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Finding the Fourth Proportional to 101,368.48, 139,884.42 and 58,923.67

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Solution

The fourth proportional to 101,368.48, 139,884.42 and 58,923.67 is: 81,312.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,368.48 : 139,884.42 = 58,923.67 : x
  2. Step 2: Convert to fraction form
    101,368.48/139,884.42 = 58,923.67/x
  3. Step 3: Cross multiply
    101,368.48x = 139,884.42 × 58,923.67
  4. Step 4: Simplify right side
    101,368.48x = 8,242,503,402.22
  5. Step 5: Solve for x
    x = 8,242,503,402.22/101,368.48
  6. Step 6: Final answer
    x = 81,312.29

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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.