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Finding the Fourth Proportional to 114,809.55, 158,490.99 and 76,633.58

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Solution

The fourth proportional to 114,809.55, 158,490.99 and 76,633.58 is: 105,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,809.55 : 158,490.99 = 76,633.58 : x
  2. Step 2: Convert to fraction form
    114,809.55/158,490.99 = 76,633.58/x
  3. Step 3: Cross multiply
    114,809.55x = 158,490.99 × 76,633.58
  4. Step 4: Simplify right side
    114,809.55x = 12,145,731,168.99
  5. Step 5: Solve for x
    x = 12,145,731,168.99/114,809.55
  6. Step 6: Final answer
    x = 105,790.25

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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.