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Finding the Fourth Proportional to 124,595.40, 171,941.65 and 68,006.77

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Solution

The fourth proportional to 124,595.40, 171,941.65 and 68,006.77 is: 93,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,595.40 : 171,941.65 = 68,006.77 : x
  2. Step 2: Convert to fraction form
    124,595.40/171,941.65 = 68,006.77/x
  3. Step 3: Cross multiply
    124,595.40x = 171,941.65 × 68,006.77
  4. Step 4: Simplify right side
    124,595.40x = 11,693,196,289.88
  5. Step 5: Solve for x
    x = 11,693,196,289.88/124,595.40
  6. Step 6: Final answer
    x = 93,849.34

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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.