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Finding the Fourth Proportional to 105,750.84, 145,935.36 and 58,003.85

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Solution

The fourth proportional to 105,750.84, 145,935.36 and 58,003.85 is: 80,044.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,750.84 : 145,935.36 = 58,003.85 : x
  2. Step 2: Convert to fraction form
    105,750.84/145,935.36 = 58,003.85/x
  3. Step 3: Cross multiply
    105,750.84x = 145,935.36 × 58,003.85
  4. Step 4: Simplify right side
    105,750.84x = 8,464,812,366.30
  5. Step 5: Solve for x
    x = 8,464,812,366.30/105,750.84
  6. Step 6: Final answer
    x = 80,044.87

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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.