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Finding the Fourth Proportional to 74,246.88, 102,466.80 and 42,425.76

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Solution

The fourth proportional to 74,246.88, 102,466.80 and 42,425.76 is: 58,551.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,246.88 : 102,466.80 = 42,425.76 : x
  2. Step 2: Convert to fraction form
    74,246.88/102,466.80 = 42,425.76/x
  3. Step 3: Cross multiply
    74,246.88x = 102,466.80 × 42,425.76
  4. Step 4: Simplify right side
    74,246.88x = 4,347,231,864.77
  5. Step 5: Solve for x
    x = 4,347,231,864.77/74,246.88
  6. Step 6: Final answer
    x = 58,551.04

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1.5x scale

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.