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Finding the Fourth Proportional to 74,499.59, 102,851.79 and 59,343.68

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Solution

The fourth proportional to 74,499.59, 102,851.79 and 59,343.68 is: 81,928.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,499.59 : 102,851.79 = 59,343.68 : x
  2. Step 2: Convert to fraction form
    74,499.59/102,851.79 = 59,343.68/x
  3. Step 3: Cross multiply
    74,499.59x = 102,851.79 × 59,343.68
  4. Step 4: Simplify right side
    74,499.59x = 6,103,602,902.21
  5. Step 5: Solve for x
    x = 6,103,602,902.21/74,499.59
  6. Step 6: Final answer
    x = 81,928.01

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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.