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Finding the Fourth Proportional to 124,609.81, 171,955.56 and 70,889.80

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Solution

The fourth proportional to 124,609.81, 171,955.56 and 70,889.80 is: 97,824.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,609.81 : 171,955.56 = 70,889.80 : x
  2. Step 2: Convert to fraction form
    124,609.81/171,955.56 = 70,889.80/x
  3. Step 3: Cross multiply
    124,609.81x = 171,955.56 × 70,889.80
  4. Step 4: Simplify right side
    124,609.81x = 12,189,895,257.29
  5. Step 5: Solve for x
    x = 12,189,895,257.29/124,609.81
  6. Step 6: Final answer
    x = 97,824.52

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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.