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Finding the Fourth Proportional to 126,572.66, 174,673.80 and 69,986.06

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Solution

The fourth proportional to 126,572.66, 174,673.80 and 69,986.06 is: 96,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,572.66 : 174,673.80 = 69,986.06 : x
  2. Step 2: Convert to fraction form
    126,572.66/174,673.80 = 69,986.06/x
  3. Step 3: Cross multiply
    126,572.66x = 174,673.80 × 69,986.06
  4. Step 4: Simplify right side
    126,572.66x = 12,224,731,047.23
  5. Step 5: Solve for x
    x = 12,224,731,047.23/126,572.66
  6. Step 6: Final answer
    x = 96,582.71

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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.