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Finding the Fourth Proportional to 98,464.59, 135,866.39 and 55,437.84

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Solution

The fourth proportional to 98,464.59, 135,866.39 and 55,437.84 is: 76,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,464.59 : 135,866.39 = 55,437.84 : x
  2. Step 2: Convert to fraction form
    98,464.59/135,866.39 = 55,437.84/x
  3. Step 3: Cross multiply
    98,464.59x = 135,866.39 × 55,437.84
  4. Step 4: Simplify right side
    98,464.59x = 7,532,138,913.01
  5. Step 5: Solve for x
    x = 7,532,138,913.01/98,464.59
  6. Step 6: Final answer
    x = 76,495.92

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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.