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Finding the Fourth Proportional to 89,613,905.60, 134,420,858.40 and 89,613,905.60

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Solution

The fourth proportional to 89,613,905.60, 134,420,858.40 and 89,613,905.60 is: 134,420,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,613,905.60 : 134,420,858.40 = 89,613,905.60 : x
  2. Step 2: Convert to fraction form
    89,613,905.60/134,420,858.40 = 89,613,905.60/x
  3. Step 3: Cross multiply
    89,613,905.60x = 134,420,858.40 × 89,613,905.60
  4. Step 4: Simplify right side
    89,613,905.60x = 12,045,978,115,328,566
  5. Step 5: Solve for x
    x = 12,045,978,115,328,566/89,613,905.60
  6. Step 6: Final answer
    x = 134,420,858.40

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1.5x scale

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.