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Finding the Fourth Proportional to 64,157.30, 96,053.70 and 60,666.20

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Solution

The fourth proportional to 64,157.30, 96,053.70 and 60,666.20 is: 90,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,157.30 : 96,053.70 = 60,666.20 : x
  2. Step 2: Convert to fraction form
    64,157.30/96,053.70 = 60,666.20/x
  3. Step 3: Cross multiply
    64,157.30x = 96,053.70 × 60,666.20
  4. Step 4: Simplify right side
    64,157.30x = 5,827,212,974.94
  5. Step 5: Solve for x
    x = 5,827,212,974.94/64,157.30
  6. Step 6: Final answer
    x = 90,826.97

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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.