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Finding the Fourth Proportional to 107,126.64, 147,893.64 and 73,186.16

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Solution

The fourth proportional to 107,126.64, 147,893.64 and 73,186.16 is: 101,037.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,126.64 : 147,893.64 = 73,186.16 : x
  2. Step 2: Convert to fraction form
    107,126.64/147,893.64 = 73,186.16/x
  3. Step 3: Cross multiply
    107,126.64x = 147,893.64 × 73,186.16
  4. Step 4: Simplify right side
    107,126.64x = 10,823,767,600.02
  5. Step 5: Solve for x
    x = 10,823,767,600.02/107,126.64
  6. Step 6: Final answer
    x = 101,037.12

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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.