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Finding the Fourth Proportional to 124,596.80, 171,946.40 and 70,879.68

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Solution

The fourth proportional to 124,596.80, 171,946.40 and 70,879.68 is: 97,815.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,596.80 : 171,946.40 = 70,879.68 : x
  2. Step 2: Convert to fraction form
    124,596.80/171,946.40 = 70,879.68/x
  3. Step 3: Cross multiply
    124,596.80x = 171,946.40 × 70,879.68
  4. Step 4: Simplify right side
    124,596.80x = 12,187,505,809.15
  5. Step 5: Solve for x
    x = 12,187,505,809.15/124,596.80
  6. Step 6: Final answer
    x = 97,815.56

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1.5x scale

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.