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Finding the Fourth Proportional to 124,159.77, 171,358.54 and 69,718.05

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Solution

The fourth proportional to 124,159.77, 171,358.54 and 69,718.05 is: 96,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,159.77 : 171,358.54 = 69,718.05 : x
  2. Step 2: Convert to fraction form
    124,159.77/171,358.54 = 69,718.05/x
  3. Step 3: Cross multiply
    124,159.77x = 171,358.54 × 69,718.05
  4. Step 4: Simplify right side
    124,159.77x = 11,946,783,085.35
  5. Step 5: Solve for x
    x = 11,946,783,085.35/124,159.77
  6. Step 6: Final answer
    x = 96,221.05

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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.