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Finding the Fourth Proportional to 93,102.56, 128,459.13 and 54,863.67

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Solution

The fourth proportional to 93,102.56, 128,459.13 and 54,863.67 is: 75,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,102.56 : 128,459.13 = 54,863.67 : x
  2. Step 2: Convert to fraction form
    93,102.56/128,459.13 = 54,863.67/x
  3. Step 3: Cross multiply
    93,102.56x = 128,459.13 × 54,863.67
  4. Step 4: Simplify right side
    93,102.56x = 7,047,739,316.81
  5. Step 5: Solve for x
    x = 7,047,739,316.81/93,102.56
  6. Step 6: Final answer
    x = 75,698.67

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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.