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Finding the Fourth Proportional to 139,877.16, 192,972.69 and 97,460.29

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Solution

The fourth proportional to 139,877.16, 192,972.69 and 97,460.29 is: 134,454.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,877.16 : 192,972.69 = 97,460.29 : x
  2. Step 2: Convert to fraction form
    139,877.16/192,972.69 = 97,460.29/x
  3. Step 3: Cross multiply
    139,877.16x = 192,972.69 × 97,460.29
  4. Step 4: Simplify right side
    139,877.16x = 18,807,174,329.48
  5. Step 5: Solve for x
    x = 18,807,174,329.48/139,877.16
  6. Step 6: Final answer
    x = 134,454.93

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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.