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Finding the Fourth Proportional to 134,128.80, 188,056.80 and 134,128.80

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Solution

The fourth proportional to 134,128.80, 188,056.80 and 134,128.80 is: 188,056.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,128.80 : 188,056.80 = 134,128.80 : x
  2. Step 2: Convert to fraction form
    134,128.80/188,056.80 = 134,128.80/x
  3. Step 3: Cross multiply
    134,128.80x = 188,056.80 × 134,128.80
  4. Step 4: Simplify right side
    134,128.80x = 25,223,832,915.84
  5. Step 5: Solve for x
    x = 25,223,832,915.84/134,128.80
  6. Step 6: Final answer
    x = 188,056.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.