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Finding the Fourth Proportional to 94,689.81, 130,675.80 and 54,416.20

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Solution

The fourth proportional to 94,689.81, 130,675.80 and 54,416.20 is: 75,096.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,689.81 : 130,675.80 = 54,416.20 : x
  2. Step 2: Convert to fraction form
    94,689.81/130,675.80 = 54,416.20/x
  3. Step 3: Cross multiply
    94,689.81x = 130,675.80 × 54,416.20
  4. Step 4: Simplify right side
    94,689.81x = 7,110,880,467.96
  5. Step 5: Solve for x
    x = 7,110,880,467.96/94,689.81
  6. Step 6: Final answer
    x = 75,096.58

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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.