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Finding the Fourth Proportional to 124,606.81, 171,951.42 and 70,886.80

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Solution

The fourth proportional to 124,606.81, 171,951.42 and 70,886.80 is: 97,820.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,606.81 : 171,951.42 = 70,886.80 : x
  2. Step 2: Convert to fraction form
    124,606.81/171,951.42 = 70,886.80/x
  3. Step 3: Cross multiply
    124,606.81x = 171,951.42 × 70,886.80
  4. Step 4: Simplify right side
    124,606.81x = 12,189,085,919.26
  5. Step 5: Solve for x
    x = 12,189,085,919.26/124,606.81
  6. Step 6: Final answer
    x = 97,820.38

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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.