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Finding the Fourth Proportional to 124,567.47, 186,846.64 and 68,433.86

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Solution

The fourth proportional to 124,567.47, 186,846.64 and 68,433.86 is: 102,648.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,567.47 : 186,846.64 = 68,433.86 : x
  2. Step 2: Convert to fraction form
    124,567.47/186,846.64 = 68,433.86/x
  3. Step 3: Cross multiply
    124,567.47x = 186,846.64 × 68,433.86
  4. Step 4: Simplify right side
    124,567.47x = 12,786,636,803.23
  5. Step 5: Solve for x
    x = 12,786,636,803.23/124,567.47
  6. Step 6: Final answer
    x = 102,648.28

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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.