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Finding the Fourth Proportional to 126,491.66, 174,543.62 and 69,899.66

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Solution

The fourth proportional to 126,491.66, 174,543.62 and 69,899.66 is: 96,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,491.66 : 174,543.62 = 69,899.66 : x
  2. Step 2: Convert to fraction form
    126,491.66/174,543.62 = 69,899.66/x
  3. Step 3: Cross multiply
    126,491.66x = 174,543.62 × 69,899.66
  4. Step 4: Simplify right side
    126,491.66x = 12,200,539,693.17
  5. Step 5: Solve for x
    x = 12,200,539,693.17/126,491.66
  6. Step 6: Final answer
    x = 96,453.31

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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.