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Finding the Fourth Proportional to 104,528.40, 156,533.40 and 83,792.40

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Solution

The fourth proportional to 104,528.40, 156,533.40 and 83,792.40 is: 125,480.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,528.40 : 156,533.40 = 83,792.40 : x
  2. Step 2: Convert to fraction form
    104,528.40/156,533.40 = 83,792.40/x
  3. Step 3: Cross multiply
    104,528.40x = 156,533.40 × 83,792.40
  4. Step 4: Simplify right side
    104,528.40x = 13,116,309,266.16
  5. Step 5: Solve for x
    x = 13,116,309,266.16/104,528.40
  6. Step 6: Final answer
    x = 125,480.82

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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.