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Finding the Fourth Proportional to 105,903.92, 146,147.90 and 60,582.40

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Solution

The fourth proportional to 105,903.92, 146,147.90 and 60,582.40 is: 83,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,903.92 : 146,147.90 = 60,582.40 : x
  2. Step 2: Convert to fraction form
    105,903.92/146,147.90 = 60,582.40/x
  3. Step 3: Cross multiply
    105,903.92x = 146,147.90 × 60,582.40
  4. Step 4: Simplify right side
    105,903.92x = 8,853,989,868.68
  5. Step 5: Solve for x
    x = 8,853,989,868.68/105,903.92
  6. Step 6: Final answer
    x = 83,603.98

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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.