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Finding the Fourth Proportional to 104,417.40, 156,626.10 and 48,257.40

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Solution

The fourth proportional to 104,417.40, 156,626.10 and 48,257.40 is: 72,386.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,417.40 : 156,626.10 = 48,257.40 : x
  2. Step 2: Convert to fraction form
    104,417.40/156,626.10 = 48,257.40/x
  3. Step 3: Cross multiply
    104,417.40x = 156,626.10 × 48,257.40
  4. Step 4: Simplify right side
    104,417.40x = 7,558,368,358.14
  5. Step 5: Solve for x
    x = 7,558,368,358.14/104,417.40
  6. Step 6: Final answer
    x = 72,386.10

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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.