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Finding the Fourth Proportional to 98,408.91, 147,601.64 and 57,906.63

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Solution

The fourth proportional to 98,408.91, 147,601.64 and 57,906.63 is: 86,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,408.91 : 147,601.64 = 57,906.63 : x
  2. Step 2: Convert to fraction form
    98,408.91/147,601.64 = 57,906.63/x
  3. Step 3: Cross multiply
    98,408.91x = 147,601.64 × 57,906.63
  4. Step 4: Simplify right side
    98,408.91x = 8,547,113,265.34
  5. Step 5: Solve for x
    x = 8,547,113,265.34/98,408.91
  6. Step 6: Final answer
    x = 86,853.04

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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.