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Finding the Fourth Proportional to 98,893.32, 136,471.98 and 53,570.28

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Solution

The fourth proportional to 98,893.32, 136,471.98 and 53,570.28 is: 73,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,893.32 : 136,471.98 = 53,570.28 : x
  2. Step 2: Convert to fraction form
    98,893.32/136,471.98 = 53,570.28/x
  3. Step 3: Cross multiply
    98,893.32x = 136,471.98 × 53,570.28
  4. Step 4: Simplify right side
    98,893.32x = 7,310,842,180.75
  5. Step 5: Solve for x
    x = 7,310,842,180.75/98,893.32
  6. Step 6: Final answer
    x = 73,926.55

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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.