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Finding the Fourth Proportional to 91,636.96, 126,458.80 and 55,826.94

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Solution

The fourth proportional to 91,636.96, 126,458.80 and 55,826.94 is: 77,041.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,636.96 : 126,458.80 = 55,826.94 : x
  2. Step 2: Convert to fraction form
    91,636.96/126,458.80 = 55,826.94/x
  3. Step 3: Cross multiply
    91,636.96x = 126,458.80 × 55,826.94
  4. Step 4: Simplify right side
    91,636.96x = 7,059,807,840.07
  5. Step 5: Solve for x
    x = 7,059,807,840.07/91,636.96
  6. Step 6: Final answer
    x = 77,041.05

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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.