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Finding the Fourth Proportional to 111,107.64, 153,328.83 and 60,806.64

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Solution

The fourth proportional to 111,107.64, 153,328.83 and 60,806.64 is: 83,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,107.64 : 153,328.83 = 60,806.64 : x
  2. Step 2: Convert to fraction form
    111,107.64/153,328.83 = 60,806.64/x
  3. Step 3: Cross multiply
    111,107.64x = 153,328.83 × 60,806.64
  4. Step 4: Simplify right side
    111,107.64x = 9,323,410,967.43
  5. Step 5: Solve for x
    x = 9,323,410,967.43/111,107.64
  6. Step 6: Final answer
    x = 83,913.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.