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Finding the Fourth Proportional to 98,262.74, 147,458.64 and 53,920.64

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Solution

The fourth proportional to 98,262.74, 147,458.64 and 53,920.64 is: 80,916.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,262.74 : 147,458.64 = 53,920.64 : x
  2. Step 2: Convert to fraction form
    98,262.74/147,458.64 = 53,920.64/x
  3. Step 3: Cross multiply
    98,262.74x = 147,458.64 × 53,920.64
  4. Step 4: Simplify right side
    98,262.74x = 7,951,064,242.33
  5. Step 5: Solve for x
    x = 7,951,064,242.33/98,262.74
  6. Step 6: Final answer
    x = 80,916.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.