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Finding the Fourth Proportional to 98,616.64, 136,091 and 53,294.48

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Solution

The fourth proportional to 98,616.64, 136,091 and 53,294.48 is: 73,546.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,616.64 : 136,091 = 53,294.48 : x
  2. Step 2: Convert to fraction form
    98,616.64/136,091 = 53,294.48/x
  3. Step 3: Cross multiply
    98,616.64x = 136,091 × 53,294.48
  4. Step 4: Simplify right side
    98,616.64x = 7,252,899,077.68
  5. Step 5: Solve for x
    x = 7,252,899,077.68/98,616.64
  6. Step 6: Final answer
    x = 73,546.40

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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.