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Finding the Fourth Proportional to 74,368.36, 102,529.29 and 53,932.06

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Solution

The fourth proportional to 74,368.36, 102,529.29 and 53,932.06 is: 74,354.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,368.36 : 102,529.29 = 53,932.06 : x
  2. Step 2: Convert to fraction form
    74,368.36/102,529.29 = 53,932.06/x
  3. Step 3: Cross multiply
    74,368.36x = 102,529.29 × 53,932.06
  4. Step 4: Simplify right side
    74,368.36x = 5,529,615,820.04
  5. Step 5: Solve for x
    x = 5,529,615,820.04/74,368.36
  6. Step 6: Final answer
    x = 74,354.41

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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.