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Finding the Fourth Proportional to 447,262.16, 670,751.08 and 147,686.90

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Solution

The fourth proportional to 447,262.16, 670,751.08 and 147,686.90 is: 221,483.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,262.16 : 670,751.08 = 147,686.90 : x
  2. Step 2: Convert to fraction form
    447,262.16/670,751.08 = 147,686.90/x
  3. Step 3: Cross multiply
    447,262.16x = 670,751.08 × 147,686.90
  4. Step 4: Simplify right side
    447,262.16x = 99,061,143,953.88
  5. Step 5: Solve for x
    x = 99,061,143,953.88/447,262.16
  6. Step 6: Final answer
    x = 221,483.40

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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.