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Finding the Fourth Proportional to 94,421.92, 130,299.96 and 51,980.08

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Solution

The fourth proportional to 94,421.92, 130,299.96 and 51,980.08 is: 71,731.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,421.92 : 130,299.96 = 51,980.08 : x
  2. Step 2: Convert to fraction form
    94,421.92/130,299.96 = 51,980.08/x
  3. Step 3: Cross multiply
    94,421.92x = 130,299.96 × 51,980.08
  4. Step 4: Simplify right side
    94,421.92x = 6,773,002,344.80
  5. Step 5: Solve for x
    x = 6,773,002,344.80/94,421.92
  6. Step 6: Final answer
    x = 71,731.25

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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.