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Finding the Fourth Proportional to 169,700.40, 254,550.60 and 86,583.60

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Solution

The fourth proportional to 169,700.40, 254,550.60 and 86,583.60 is: 129,875.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,700.40 : 254,550.60 = 86,583.60 : x
  2. Step 2: Convert to fraction form
    169,700.40/254,550.60 = 86,583.60/x
  3. Step 3: Cross multiply
    169,700.40x = 254,550.60 × 86,583.60
  4. Step 4: Simplify right side
    169,700.40x = 22,039,907,330.16
  5. Step 5: Solve for x
    x = 22,039,907,330.16/169,700.40
  6. Step 6: Final answer
    x = 129,875.40

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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.