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Finding the Fourth Proportional to 105,958.48, 146,225.28 and 58,214.92

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Solution

The fourth proportional to 105,958.48, 146,225.28 and 58,214.92 is: 80,338.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,958.48 : 146,225.28 = 58,214.92 : x
  2. Step 2: Convert to fraction form
    105,958.48/146,225.28 = 58,214.92/x
  3. Step 3: Cross multiply
    105,958.48x = 146,225.28 × 58,214.92
  4. Step 4: Simplify right side
    105,958.48x = 8,512,492,977.18
  5. Step 5: Solve for x
    x = 8,512,492,977.18/105,958.48
  6. Step 6: Final answer
    x = 80,338.01

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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.