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Finding the Fourth Proportional to 114,797.70, 158,045.31 and 90,554.40

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Solution

The fourth proportional to 114,797.70, 158,045.31 and 90,554.40 is: 124,668.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,797.70 : 158,045.31 = 90,554.40 : x
  2. Step 2: Convert to fraction form
    114,797.70/158,045.31 = 90,554.40/x
  3. Step 3: Cross multiply
    114,797.70x = 158,045.31 × 90,554.40
  4. Step 4: Simplify right side
    114,797.70x = 14,311,698,219.86
  5. Step 5: Solve for x
    x = 14,311,698,219.86/114,797.70
  6. Step 6: Final answer
    x = 124,668.86

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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.