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Finding the Fourth Proportional to 104,516.40, 156,659.40 and 57,802.80

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Solution

The fourth proportional to 104,516.40, 156,659.40 and 57,802.80 is: 86,640.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,516.40 : 156,659.40 = 57,802.80 : x
  2. Step 2: Convert to fraction form
    104,516.40/156,659.40 = 57,802.80/x
  3. Step 3: Cross multiply
    104,516.40x = 156,659.40 × 57,802.80
  4. Step 4: Simplify right side
    104,516.40x = 9,055,351,966.32
  5. Step 5: Solve for x
    x = 9,055,351,966.32/104,516.40
  6. Step 6: Final answer
    x = 86,640.49

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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.