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Finding the Fourth Proportional to 131,653.80, 183,965.40 and 131,653.80

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Solution

The fourth proportional to 131,653.80, 183,965.40 and 131,653.80 is: 183,965.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,653.80 : 183,965.40 = 131,653.80 : x
  2. Step 2: Convert to fraction form
    131,653.80/183,965.40 = 131,653.80/x
  3. Step 3: Cross multiply
    131,653.80x = 183,965.40 × 131,653.80
  4. Step 4: Simplify right side
    131,653.80x = 24,219,743,978.52
  5. Step 5: Solve for x
    x = 24,219,743,978.52/131,653.80
  6. Step 6: Final answer
    x = 183,965.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.