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Finding the Fourth Proportional to 124,407, 171,704.16 and 73,416.60

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Solution

The fourth proportional to 124,407, 171,704.16 and 73,416.60 is: 101,328.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,407 : 171,704.16 = 73,416.60 : x
  2. Step 2: Convert to fraction form
    124,407/171,704.16 = 73,416.60/x
  3. Step 3: Cross multiply
    124,407x = 171,704.16 × 73,416.60
  4. Step 4: Simplify right side
    124,407x = 12,605,935,633.06
  5. Step 5: Solve for x
    x = 12,605,935,633.06/124,407
  6. Step 6: Final answer
    x = 101,328.19

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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.