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Finding the Fourth Proportional to 147,570.80, 221,327.40 and 47,706.80

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Solution

The fourth proportional to 147,570.80, 221,327.40 and 47,706.80 is: 71,550.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,570.80 : 221,327.40 = 47,706.80 : x
  2. Step 2: Convert to fraction form
    147,570.80/221,327.40 = 47,706.80/x
  3. Step 3: Cross multiply
    147,570.80x = 221,327.40 × 47,706.80
  4. Step 4: Simplify right side
    147,570.80x = 10,558,822,006.32
  5. Step 5: Solve for x
    x = 10,558,822,006.32/147,570.80
  6. Step 6: Final answer
    x = 71,550.89

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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.