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Finding the Fourth Proportional to 483,114.96, 724,672.44 and 128,156.76

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Solution

The fourth proportional to 483,114.96, 724,672.44 and 128,156.76 is: 192,235.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,114.96 : 724,672.44 = 128,156.76 : x
  2. Step 2: Convert to fraction form
    483,114.96/724,672.44 = 128,156.76/x
  3. Step 3: Cross multiply
    483,114.96x = 724,672.44 × 128,156.76
  4. Step 4: Simplify right side
    483,114.96x = 92,871,671,971.69
  5. Step 5: Solve for x
    x = 92,871,671,971.69/483,114.96
  6. Step 6: Final answer
    x = 192,235.14

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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.