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Finding the Fourth Proportional to 124,374.46, 171,631.66 and 70,653.54

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Solution

The fourth proportional to 124,374.46, 171,631.66 and 70,653.54 is: 97,498.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,374.46 : 171,631.66 = 70,653.54 : x
  2. Step 2: Convert to fraction form
    124,374.46/171,631.66 = 70,653.54/x
  3. Step 3: Cross multiply
    124,374.46x = 171,631.66 × 70,653.54
  4. Step 4: Simplify right side
    124,374.46x = 12,126,384,471.82
  5. Step 5: Solve for x
    x = 12,126,384,471.82/124,374.46
  6. Step 6: Final answer
    x = 97,498.99

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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.