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Finding the Fourth Proportional to 104,012.40, 155,759.40 and 83,276.40

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Solution

The fourth proportional to 104,012.40, 155,759.40 and 83,276.40 is: 124,707.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,012.40 : 155,759.40 = 83,276.40 : x
  2. Step 2: Convert to fraction form
    104,012.40/155,759.40 = 83,276.40/x
  3. Step 3: Cross multiply
    104,012.40x = 155,759.40 × 83,276.40
  4. Step 4: Simplify right side
    104,012.40x = 12,971,082,098.16
  5. Step 5: Solve for x
    x = 12,971,082,098.16/104,012.40
  6. Step 6: Final answer
    x = 124,707.07

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1.5x scale

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.