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Finding the Fourth Proportional to 452,599.41, 678,931.92 and 137,080.92

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Solution

The fourth proportional to 452,599.41, 678,931.92 and 137,080.92 is: 205,631.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,599.41 : 678,931.92 = 137,080.92 : x
  2. Step 2: Convert to fraction form
    452,599.41/678,931.92 = 137,080.92/x
  3. Step 3: Cross multiply
    452,599.41x = 678,931.92 × 137,080.92
  4. Step 4: Simplify right side
    452,599.41x = 93,068,612,210.97
  5. Step 5: Solve for x
    x = 93,068,612,210.97/452,599.41
  6. Step 6: Final answer
    x = 205,631.32

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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.