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Finding the Fourth Proportional to 104,284, 156,032.34 and 64,655.56

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Solution

The fourth proportional to 104,284, 156,032.34 and 64,655.56 is: 96,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,284 : 156,032.34 = 64,655.56 : x
  2. Step 2: Convert to fraction form
    104,284/156,032.34 = 64,655.56/x
  3. Step 3: Cross multiply
    104,284x = 156,032.34 × 64,655.56
  4. Step 4: Simplify right side
    104,284x = 10,088,358,320.81
  5. Step 5: Solve for x
    x = 10,088,358,320.81/104,284
  6. Step 6: Final answer
    x = 96,739.27

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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.