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Finding the Fourth Proportional to 94,181.97, 129,913.47 and 55,915.56

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Solution

The fourth proportional to 94,181.97, 129,913.47 and 55,915.56 is: 77,129.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,181.97 : 129,913.47 = 55,915.56 : x
  2. Step 2: Convert to fraction form
    94,181.97/129,913.47 = 55,915.56/x
  3. Step 3: Cross multiply
    94,181.97x = 129,913.47 × 55,915.56
  4. Step 4: Simplify right side
    94,181.97x = 7,264,184,426.59
  5. Step 5: Solve for x
    x = 7,264,184,426.59/94,181.97
  6. Step 6: Final answer
    x = 77,129.25

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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.