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Finding the Fourth Proportional to 91,956.63, 126,903.87 and 51,670.26

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Solution

The fourth proportional to 91,956.63, 126,903.87 and 51,670.26 is: 71,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,956.63 : 126,903.87 = 51,670.26 : x
  2. Step 2: Convert to fraction form
    91,956.63/126,903.87 = 51,670.26/x
  3. Step 3: Cross multiply
    91,956.63x = 126,903.87 × 51,670.26
  4. Step 4: Simplify right side
    91,956.63x = 6,557,155,957.91
  5. Step 5: Solve for x
    x = 6,557,155,957.91/91,956.63
  6. Step 6: Final answer
    x = 71,307.05

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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.