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Finding the Fourth Proportional to 157,508, 236,262 and 40,772

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Solution

The fourth proportional to 157,508, 236,262 and 40,772 is: 61,158

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,508 : 236,262 = 40,772 : x
  2. Step 2: Convert to fraction form
    157,508/236,262 = 40,772/x
  3. Step 3: Cross multiply
    157,508x = 236,262 × 40,772
  4. Step 4: Simplify right side
    157,508x = 9,632,874,264
  5. Step 5: Solve for x
    x = 9,632,874,264/157,508
  6. Step 6: Final answer
    x = 61,158

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