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Finding the Fourth Proportional to 126,347, 174,280.26 and 75,324.28

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Solution

The fourth proportional to 126,347, 174,280.26 and 75,324.28 is: 103,900.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,347 : 174,280.26 = 75,324.28 : x
  2. Step 2: Convert to fraction form
    126,347/174,280.26 = 75,324.28/x
  3. Step 3: Cross multiply
    126,347x = 174,280.26 × 75,324.28
  4. Step 4: Simplify right side
    126,347x = 13,127,535,102.71
  5. Step 5: Solve for x
    x = 13,127,535,102.71/126,347
  6. Step 6: Final answer
    x = 103,900.65

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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.