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Finding the Fourth Proportional to 172,477.96, 258,717.01 and 77,597.34

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Solution

The fourth proportional to 172,477.96, 258,717.01 and 77,597.34 is: 116,396.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,477.96 : 258,717.01 = 77,597.34 : x
  2. Step 2: Convert to fraction form
    172,477.96/258,717.01 = 77,597.34/x
  3. Step 3: Cross multiply
    172,477.96x = 258,717.01 × 77,597.34
  4. Step 4: Simplify right side
    172,477.96x = 20,075,751,788.75
  5. Step 5: Solve for x
    x = 20,075,751,788.75/172,477.96
  6. Step 6: Final answer
    x = 116,396.04

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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.