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Finding the Fourth Proportional to 104,648.40, 156,969.10 and 45,484.08

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Solution

The fourth proportional to 104,648.40, 156,969.10 and 45,484.08 is: 68,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,648.40 : 156,969.10 = 45,484.08 : x
  2. Step 2: Convert to fraction form
    104,648.40/156,969.10 = 45,484.08/x
  3. Step 3: Cross multiply
    104,648.40x = 156,969.10 × 45,484.08
  4. Step 4: Simplify right side
    104,648.40x = 7,139,595,101.93
  5. Step 5: Solve for x
    x = 7,139,595,101.93/104,648.40
  6. Step 6: Final answer
    x = 68,224.60

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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.