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Finding the Fourth Proportional to 447,264.16, 670,754.08 and 147,688.90

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Solution

The fourth proportional to 447,264.16, 670,754.08 and 147,688.90 is: 221,486.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,264.16 : 670,754.08 = 147,688.90 : x
  2. Step 2: Convert to fraction form
    447,264.16/670,754.08 = 147,688.90/x
  3. Step 3: Cross multiply
    447,264.16x = 670,754.08 × 147,688.90
  4. Step 4: Simplify right side
    447,264.16x = 99,062,932,245.71
  5. Step 5: Solve for x
    x = 99,062,932,245.71/447,264.16
  6. Step 6: Final answer
    x = 221,486.41

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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.