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Finding the Fourth Proportional to 93,101.99, 128,458.35 and 54,863.10

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Solution

The fourth proportional to 93,101.99, 128,458.35 and 54,863.10 is: 75,697.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,101.99 : 128,458.35 = 54,863.10 : x
  2. Step 2: Convert to fraction form
    93,101.99/128,458.35 = 54,863.10/x
  3. Step 3: Cross multiply
    93,101.99x = 128,458.35 × 54,863.10
  4. Step 4: Simplify right side
    93,101.99x = 7,047,623,301.89
  5. Step 5: Solve for x
    x = 7,047,623,301.89/93,101.99
  6. Step 6: Final answer
    x = 75,697.88

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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.