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Finding the Fourth Proportional to 94,602.80, 130,416.18 and 74,424.62

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Solution

The fourth proportional to 94,602.80, 130,416.18 and 74,424.62 is: 102,599.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,602.80 : 130,416.18 = 74,424.62 : x
  2. Step 2: Convert to fraction form
    94,602.80/130,416.18 = 74,424.62/x
  3. Step 3: Cross multiply
    94,602.80x = 130,416.18 × 74,424.62
  4. Step 4: Simplify right side
    94,602.80x = 9,706,173,986.27
  5. Step 5: Solve for x
    x = 9,706,173,986.27/94,602.80
  6. Step 6: Final answer
    x = 102,599.23

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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.