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Finding the Fourth Proportional to 94,150.85, 129,927.69 and 51,129.99

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Solution

The fourth proportional to 94,150.85, 129,927.69 and 51,129.99 is: 70,559.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,150.85 : 129,927.69 = 51,129.99 : x
  2. Step 2: Convert to fraction form
    94,150.85/129,927.69 = 51,129.99/x
  3. Step 3: Cross multiply
    94,150.85x = 129,927.69 × 51,129.99
  4. Step 4: Simplify right side
    94,150.85x = 6,643,201,490.42
  5. Step 5: Solve for x
    x = 6,643,201,490.42/94,150.85
  6. Step 6: Final answer
    x = 70,559.13

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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.