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Finding the Fourth Proportional to 104,618.40, 156,927.60 and 64,669.20

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Solution

The fourth proportional to 104,618.40, 156,927.60 and 64,669.20 is: 97,003.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,618.40 : 156,927.60 = 64,669.20 : x
  2. Step 2: Convert to fraction form
    104,618.40/156,927.60 = 64,669.20/x
  3. Step 3: Cross multiply
    104,618.40x = 156,927.60 × 64,669.20
  4. Step 4: Simplify right side
    104,618.40x = 10,148,382,349.92
  5. Step 5: Solve for x
    x = 10,148,382,349.92/104,618.40
  6. Step 6: Final answer
    x = 97,003.80

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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.