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Finding the Fourth Proportional to 126,796.33, 174,953.86 and 72,347.32

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Solution

The fourth proportional to 126,796.33, 174,953.86 and 72,347.32 is: 99,824.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,796.33 : 174,953.86 = 72,347.32 : x
  2. Step 2: Convert to fraction form
    126,796.33/174,953.86 = 72,347.32/x
  3. Step 3: Cross multiply
    126,796.33x = 174,953.86 × 72,347.32
  4. Step 4: Simplify right side
    126,796.33x = 12,657,442,894.66
  5. Step 5: Solve for x
    x = 12,657,442,894.66/126,796.33
  6. Step 6: Final answer
    x = 99,824.99

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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.