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Finding the Fourth Proportional to 98,468.28, 135,886.80 and 56,026.82

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Solution

The fourth proportional to 98,468.28, 135,886.80 and 56,026.82 is: 77,317.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,468.28 : 135,886.80 = 56,026.82 : x
  2. Step 2: Convert to fraction form
    98,468.28/135,886.80 = 56,026.82/x
  3. Step 3: Cross multiply
    98,468.28x = 135,886.80 × 56,026.82
  4. Step 4: Simplify right side
    98,468.28x = 7,613,305,283.98
  5. Step 5: Solve for x
    x = 7,613,305,283.98/98,468.28
  6. Step 6: Final answer
    x = 77,317.34

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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.