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Finding the Fourth Proportional to 126,410.16, 174,431.16 and 69,818.16

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Solution

The fourth proportional to 126,410.16, 174,431.16 and 69,818.16 is: 96,340.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,410.16 : 174,431.16 = 69,818.16 : x
  2. Step 2: Convert to fraction form
    126,410.16/174,431.16 = 69,818.16/x
  3. Step 3: Cross multiply
    126,410.16x = 174,431.16 × 69,818.16
  4. Step 4: Simplify right side
    126,410.16x = 12,178,462,637.87
  5. Step 5: Solve for x
    x = 12,178,462,637.87/126,410.16
  6. Step 6: Final answer
    x = 96,340.85

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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.