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Finding the Fourth Proportional to 105,807.76, 146,015.88 and 58,059.76

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Solution

The fourth proportional to 105,807.76, 146,015.88 and 58,059.76 is: 80,123.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,807.76 : 146,015.88 = 58,059.76 : x
  2. Step 2: Convert to fraction form
    105,807.76/146,015.88 = 58,059.76/x
  3. Step 3: Cross multiply
    105,807.76x = 146,015.88 × 58,059.76
  4. Step 4: Simplify right side
    105,807.76x = 8,477,646,948.99
  5. Step 5: Solve for x
    x = 8,477,646,948.99/105,807.76
  6. Step 6: Final answer
    x = 80,123.11

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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.