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Finding the Fourth Proportional to 173,128.48, 259,692.72 and 157,783.84

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Solution

The fourth proportional to 173,128.48, 259,692.72 and 157,783.84 is: 236,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,128.48 : 259,692.72 = 157,783.84 : x
  2. Step 2: Convert to fraction form
    173,128.48/259,692.72 = 157,783.84/x
  3. Step 3: Cross multiply
    173,128.48x = 259,692.72 × 157,783.84
  4. Step 4: Simplify right side
    173,128.48x = 40,975,314,581.64
  5. Step 5: Solve for x
    x = 40,975,314,581.64/173,128.48
  6. Step 6: Final answer
    x = 236,675.76

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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.