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Finding the Fourth Proportional to 524,093.72, 786,155.92 and 145,017.52

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Solution

The fourth proportional to 524,093.72, 786,155.92 and 145,017.52 is: 217,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,093.72 : 786,155.92 = 145,017.52 : x
  2. Step 2: Convert to fraction form
    524,093.72/786,155.92 = 145,017.52/x
  3. Step 3: Cross multiply
    524,093.72x = 786,155.92 × 145,017.52
  4. Step 4: Simplify right side
    524,093.72x = 114,006,381,851.72
  5. Step 5: Solve for x
    x = 114,006,381,851.72/524,093.72
  6. Step 6: Final answer
    x = 217,530.52

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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.