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Finding the Fourth Proportional to 462,490.02, 693,851.40 and 130,066.02

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Solution

The fourth proportional to 462,490.02, 693,851.40 and 130,066.02 is: 195,131.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,490.02 : 693,851.40 = 130,066.02 : x
  2. Step 2: Convert to fraction form
    462,490.02/693,851.40 = 130,066.02/x
  3. Step 3: Cross multiply
    462,490.02x = 693,851.40 × 130,066.02
  4. Step 4: Simplify right side
    462,490.02x = 90,246,490,069.43
  5. Step 5: Solve for x
    x = 90,246,490,069.43/462,490.02
  6. Step 6: Final answer
    x = 195,131.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.