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Finding the Fourth Proportional to 274,085.66, 411,078.26 and 124,289.93

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Solution

The fourth proportional to 274,085.66, 411,078.26 and 124,289.93 is: 186,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,085.66 : 411,078.26 = 124,289.93 : x
  2. Step 2: Convert to fraction form
    274,085.66/411,078.26 = 124,289.93/x
  3. Step 3: Cross multiply
    274,085.66x = 411,078.26 × 124,289.93
  4. Step 4: Simplify right side
    274,085.66x = 51,092,885,483.08
  5. Step 5: Solve for x
    x = 51,092,885,483.08/274,085.66
  6. Step 6: Final answer
    x = 186,412.11

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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.