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Finding the Fourth Proportional to 93,440.49, 128,947.65 and 52,601.30

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Solution

The fourth proportional to 93,440.49, 128,947.65 and 52,601.30 is: 72,589.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,440.49 : 128,947.65 = 52,601.30 : x
  2. Step 2: Convert to fraction form
    93,440.49/128,947.65 = 52,601.30/x
  3. Step 3: Cross multiply
    93,440.49x = 128,947.65 × 52,601.30
  4. Step 4: Simplify right side
    93,440.49x = 6,782,813,663.51
  5. Step 5: Solve for x
    x = 6,782,813,663.51/93,440.49
  6. Step 6: Final answer
    x = 72,589.67

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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.