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Finding the Fourth Proportional to 126,586.55, 174,629.95 and 90,296.01

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Solution

The fourth proportional to 126,586.55, 174,629.95 and 90,296.01 is: 124,566.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,586.55 : 174,629.95 = 90,296.01 : x
  2. Step 2: Convert to fraction form
    126,586.55/174,629.95 = 90,296.01/x
  3. Step 3: Cross multiply
    126,586.55x = 174,629.95 × 90,296.01
  4. Step 4: Simplify right side
    126,586.55x = 15,768,387,711.50
  5. Step 5: Solve for x
    x = 15,768,387,711.50/126,586.55
  6. Step 6: Final answer
    x = 124,566.06

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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.