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Finding the Fourth Proportional to 451,179.05, 676,810.34 and 147,574.93

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Solution

The fourth proportional to 451,179.05, 676,810.34 and 147,574.93 is: 221,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,179.05 : 676,810.34 = 147,574.93 : x
  2. Step 2: Convert to fraction form
    451,179.05/676,810.34 = 147,574.93/x
  3. Step 3: Cross multiply
    451,179.05x = 676,810.34 × 147,574.93
  4. Step 4: Simplify right side
    451,179.05x = 99,880,237,810.90
  5. Step 5: Solve for x
    x = 99,880,237,810.90/451,179.05
  6. Step 6: Final answer
    x = 221,376.05

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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.