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Finding the Fourth Proportional to 93,507.30, 129,040.54 and 51,065.83

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Solution

The fourth proportional to 93,507.30, 129,040.54 and 51,065.83 is: 70,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,507.30 : 129,040.54 = 51,065.83 : x
  2. Step 2: Convert to fraction form
    93,507.30/129,040.54 = 51,065.83/x
  3. Step 3: Cross multiply
    93,507.30x = 129,040.54 × 51,065.83
  4. Step 4: Simplify right side
    93,507.30x = 6,589,562,278.75
  5. Step 5: Solve for x
    x = 6,589,562,278.75/93,507.30
  6. Step 6: Final answer
    x = 70,471.10

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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.