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Finding the Fourth Proportional to 86,153.78, 129,177.74 and 33,501.89

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Solution

The fourth proportional to 86,153.78, 129,177.74 and 33,501.89 is: 50,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,153.78 : 129,177.74 = 33,501.89 : x
  2. Step 2: Convert to fraction form
    86,153.78/129,177.74 = 33,501.89/x
  3. Step 3: Cross multiply
    86,153.78x = 129,177.74 × 33,501.89
  4. Step 4: Simplify right side
    86,153.78x = 4,327,697,622.53
  5. Step 5: Solve for x
    x = 4,327,697,622.53/86,153.78
  6. Step 6: Final answer
    x = 50,232.25

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1.5x scale

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.