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Finding the Fourth Proportional to 74,300.80, 102,533.40 and 42,467.80

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Solution

The fourth proportional to 74,300.80, 102,533.40 and 42,467.80 is: 58,604.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,300.80 : 102,533.40 = 42,467.80 : x
  2. Step 2: Convert to fraction form
    74,300.80/102,533.40 = 42,467.80/x
  3. Step 3: Cross multiply
    74,300.80x = 102,533.40 × 42,467.80
  4. Step 4: Simplify right side
    74,300.80x = 4,354,367,924.52
  5. Step 5: Solve for x
    x = 4,354,367,924.52/74,300.80
  6. Step 6: Final answer
    x = 58,604.59

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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.