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Finding the Fourth Proportional to 98,568.75, 136,024.88 and 53,856.75

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Solution

The fourth proportional to 98,568.75, 136,024.88 and 53,856.75 is: 74,322.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,568.75 : 136,024.88 = 53,856.75 : x
  2. Step 2: Convert to fraction form
    98,568.75/136,024.88 = 53,856.75/x
  3. Step 3: Cross multiply
    98,568.75x = 136,024.88 × 53,856.75
  4. Step 4: Simplify right side
    98,568.75x = 7,325,857,686.66
  5. Step 5: Solve for x
    x = 7,325,857,686.66/98,568.75
  6. Step 6: Final answer
    x = 74,322.32

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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.