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Finding the Fourth Proportional to 111,107.52, 153,328.80 and 60,809.28

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Solution

The fourth proportional to 111,107.52, 153,328.80 and 60,809.28 is: 83,917.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,107.52 : 153,328.80 = 60,809.28 : x
  2. Step 2: Convert to fraction form
    111,107.52/153,328.80 = 60,809.28/x
  3. Step 3: Cross multiply
    111,107.52x = 153,328.80 × 60,809.28
  4. Step 4: Simplify right side
    111,107.52x = 9,323,813,931.26
  5. Step 5: Solve for x
    x = 9,323,813,931.26/111,107.52
  6. Step 6: Final answer
    x = 83,917.04

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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.