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Finding the Fourth Proportional to 306,968.66, 460,515.48 and 129,476.32

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Solution

The fourth proportional to 306,968.66, 460,515.48 and 129,476.32 is: 194,240.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,968.66 : 460,515.48 = 129,476.32 : x
  2. Step 2: Convert to fraction form
    306,968.66/460,515.48 = 129,476.32/x
  3. Step 3: Cross multiply
    306,968.66x = 460,515.48 × 129,476.32
  4. Step 4: Simplify right side
    306,968.66x = 59,625,849,653.43
  5. Step 5: Solve for x
    x = 59,625,849,653.43/306,968.66
  6. Step 6: Final answer
    x = 194,240.84

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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.