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Finding the Fourth Proportional to 93,103.56, 128,460.51 and 54,864.67

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Solution

The fourth proportional to 93,103.56, 128,460.51 and 54,864.67 is: 75,700.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,103.56 : 128,460.51 = 54,864.67 : x
  2. Step 2: Convert to fraction form
    93,103.56/128,460.51 = 54,864.67/x
  3. Step 3: Cross multiply
    93,103.56x = 128,460.51 × 54,864.67
  4. Step 4: Simplify right side
    93,103.56x = 7,047,943,489.18
  5. Step 5: Solve for x
    x = 7,047,943,489.18/93,103.56
  6. Step 6: Final answer
    x = 75,700.04

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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.