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Finding the Fourth Proportional to 74,484, 111,728.88 and 25,236

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Solution

The fourth proportional to 74,484, 111,728.88 and 25,236 is: 37,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,484 : 111,728.88 = 25,236 : x
  2. Step 2: Convert to fraction form
    74,484/111,728.88 = 25,236/x
  3. Step 3: Cross multiply
    74,484x = 111,728.88 × 25,236
  4. Step 4: Simplify right side
    74,484x = 2,819,590,015.68
  5. Step 5: Solve for x
    x = 2,819,590,015.68/74,484
  6. Step 6: Final answer
    x = 37,854.98

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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.