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Finding the Fourth Proportional to 124,076, 171,224.96 and 70,343.84

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Solution

The fourth proportional to 124,076, 171,224.96 and 70,343.84 is: 97,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,076 : 171,224.96 = 70,343.84 : x
  2. Step 2: Convert to fraction form
    124,076/171,224.96 = 70,343.84/x
  3. Step 3: Cross multiply
    124,076x = 171,224.96 × 70,343.84
  4. Step 4: Simplify right side
    124,076x = 12,044,621,190.25
  5. Step 5: Solve for x
    x = 12,044,621,190.25/124,076
  6. Step 6: Final answer
    x = 97,074.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.