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Finding the Fourth Proportional to 126,434.58, 174,483.14 and 75,476.88

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Solution

The fourth proportional to 126,434.58, 174,483.14 and 75,476.88 is: 104,160.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,434.58 : 174,483.14 = 75,476.88 : x
  2. Step 2: Convert to fraction form
    126,434.58/174,483.14 = 75,476.88/x
  3. Step 3: Cross multiply
    126,434.58x = 174,483.14 × 75,476.88
  4. Step 4: Simplify right side
    126,434.58x = 13,169,443,019.80
  5. Step 5: Solve for x
    x = 13,169,443,019.80/126,434.58
  6. Step 6: Final answer
    x = 104,160.14

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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.