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Finding the Fourth Proportional to 74,970.62, 112,487.01 and 32,828.95

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Solution

The fourth proportional to 74,970.62, 112,487.01 and 32,828.95 is: 49,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,970.62 : 112,487.01 = 32,828.95 : x
  2. Step 2: Convert to fraction form
    74,970.62/112,487.01 = 32,828.95/x
  3. Step 3: Cross multiply
    74,970.62x = 112,487.01 × 32,828.95
  4. Step 4: Simplify right side
    74,970.62x = 3,692,830,426.94
  5. Step 5: Solve for x
    x = 3,692,830,426.94/74,970.62
  6. Step 6: Final answer
    x = 49,257.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.