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Finding the Fourth Proportional to 74,798.63, 103,211.88 and 42,967.52

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Solution

The fourth proportional to 74,798.63, 103,211.88 and 42,967.52 is: 59,289.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,798.63 : 103,211.88 = 42,967.52 : x
  2. Step 2: Convert to fraction form
    74,798.63/103,211.88 = 42,967.52/x
  3. Step 3: Cross multiply
    74,798.63x = 103,211.88 × 42,967.52
  4. Step 4: Simplify right side
    74,798.63x = 4,434,758,518.14
  5. Step 5: Solve for x
    x = 4,434,758,518.14/74,798.63
  6. Step 6: Final answer
    x = 59,289.30

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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.