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Finding the Fourth Proportional to 66,734,672.80, 93,562,911.20 and 66,734,672.80

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Solution

The fourth proportional to 66,734,672.80, 93,562,911.20 and 66,734,672.80 is: 93,562,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,734,672.80 : 93,562,911.20 = 66,734,672.80 : x
  2. Step 2: Convert to fraction form
    66,734,672.80/93,562,911.20 = 66,734,672.80/x
  3. Step 3: Cross multiply
    66,734,672.80x = 93,562,911.20 × 66,734,672.80
  4. Step 4: Simplify right side
    66,734,672.80x = 6,243,890,265,147,455
  5. Step 5: Solve for x
    x = 6,243,890,265,147,455/66,734,672.80
  6. Step 6: Final answer
    x = 93,562,911.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.