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Finding the Fourth Proportional to 528,603.42, 792,898.03 and 129,247.63

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Solution

The fourth proportional to 528,603.42, 792,898.03 and 129,247.63 is: 193,869.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,603.42 : 792,898.03 = 129,247.63 : x
  2. Step 2: Convert to fraction form
    528,603.42/792,898.03 = 129,247.63/x
  3. Step 3: Cross multiply
    528,603.42x = 792,898.03 × 129,247.63
  4. Step 4: Simplify right side
    528,603.42x = 102,480,191,209.17
  5. Step 5: Solve for x
    x = 102,480,191,209.17/528,603.42
  6. Step 6: Final answer
    x = 193,869.71

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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.