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Finding the Fourth Proportional to 64,843.20, 97,070.40 and 60,998.40

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Solution

The fourth proportional to 64,843.20, 97,070.40 and 60,998.40 is: 91,314.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,843.20 : 97,070.40 = 60,998.40 : x
  2. Step 2: Convert to fraction form
    64,843.20/97,070.40 = 60,998.40/x
  3. Step 3: Cross multiply
    64,843.20x = 97,070.40 × 60,998.40
  4. Step 4: Simplify right side
    64,843.20x = 5,921,139,087.36
  5. Step 5: Solve for x
    x = 5,921,139,087.36/64,843.20
  6. Step 6: Final answer
    x = 91,314.73

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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.