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Finding the Fourth Proportional to 74,148.78, 102,303.87 and 41,881.68

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Solution

The fourth proportional to 74,148.78, 102,303.87 and 41,881.68 is: 57,784.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.78 : 102,303.87 = 41,881.68 : x
  2. Step 2: Convert to fraction form
    74,148.78/102,303.87 = 41,881.68/x
  3. Step 3: Cross multiply
    74,148.78x = 102,303.87 × 41,881.68
  4. Step 4: Simplify right side
    74,148.78x = 4,284,657,946.10
  5. Step 5: Solve for x
    x = 4,284,657,946.10/74,148.78
  6. Step 6: Final answer
    x = 57,784.60

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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.