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Finding the Fourth Proportional to 134,128.64, 201,236.64 and 63,998.88

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Solution

The fourth proportional to 134,128.64, 201,236.64 and 63,998.88 is: 96,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,128.64 : 201,236.64 = 63,998.88 : x
  2. Step 2: Convert to fraction form
    134,128.64/201,236.64 = 63,998.88/x
  3. Step 3: Cross multiply
    134,128.64x = 201,236.64 × 63,998.88
  4. Step 4: Simplify right side
    134,128.64x = 12,878,919,574.96
  5. Step 5: Solve for x
    x = 12,878,919,574.96/134,128.64
  6. Step 6: Final answer
    x = 96,019.16

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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.