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Finding the Fourth Proportional to 126,758.84, 174,875.96 and 73,015.16

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Solution

The fourth proportional to 126,758.84, 174,875.96 and 73,015.16 is: 100,731.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,758.84 : 174,875.96 = 73,015.16 : x
  2. Step 2: Convert to fraction form
    126,758.84/174,875.96 = 73,015.16/x
  3. Step 3: Cross multiply
    126,758.84x = 174,875.96 × 73,015.16
  4. Step 4: Simplify right side
    126,758.84x = 12,768,596,199.55
  5. Step 5: Solve for x
    x = 12,768,596,199.55/126,758.84
  6. Step 6: Final answer
    x = 100,731.41

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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.