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Finding the Fourth Proportional to 114,114.56, 171,337.95 and 81,010.40

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Solution

The fourth proportional to 114,114.56, 171,337.95 and 81,010.40 is: 121,633.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,114.56 : 171,337.95 = 81,010.40 : x
  2. Step 2: Convert to fraction form
    114,114.56/171,337.95 = 81,010.40/x
  3. Step 3: Cross multiply
    114,114.56x = 171,337.95 × 81,010.40
  4. Step 4: Simplify right side
    114,114.56x = 13,880,155,007.99
  5. Step 5: Solve for x
    x = 13,880,155,007.99/114,114.56
  6. Step 6: Final answer
    x = 121,633.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.