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Finding the Fourth Proportional to 114,487.54, 171,746.94 and 39,587.56

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Solution

The fourth proportional to 114,487.54, 171,746.94 and 39,587.56 is: 59,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,487.54 : 171,746.94 = 39,587.56 : x
  2. Step 2: Convert to fraction form
    114,487.54/171,746.94 = 39,587.56/x
  3. Step 3: Cross multiply
    114,487.54x = 171,746.94 × 39,587.56
  4. Step 4: Simplify right side
    114,487.54x = 6,799,042,292.07
  5. Step 5: Solve for x
    x = 6,799,042,292.07/114,487.54
  6. Step 6: Final answer
    x = 59,386.74

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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.