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Finding the Fourth Proportional to 126,486.32, 174,549.32 and 69,898.64

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Solution

The fourth proportional to 126,486.32, 174,549.32 and 69,898.64 is: 96,459.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,486.32 : 174,549.32 = 69,898.64 : x
  2. Step 2: Convert to fraction form
    126,486.32/174,549.32 = 69,898.64/x
  3. Step 3: Cross multiply
    126,486.32x = 174,549.32 × 69,898.64
  4. Step 4: Simplify right side
    126,486.32x = 12,200,760,080.92
  5. Step 5: Solve for x
    x = 12,200,760,080.92/126,486.32
  6. Step 6: Final answer
    x = 96,459.13

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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.