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Finding the Fourth Proportional to 72,326.73, 99,798.96 and 45,450.18

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Solution

The fourth proportional to 72,326.73, 99,798.96 and 45,450.18 is: 62,713.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,326.73 : 99,798.96 = 45,450.18 : x
  2. Step 2: Convert to fraction form
    72,326.73/99,798.96 = 45,450.18/x
  3. Step 3: Cross multiply
    72,326.73x = 99,798.96 × 45,450.18
  4. Step 4: Simplify right side
    72,326.73x = 4,535,880,695.81
  5. Step 5: Solve for x
    x = 4,535,880,695.81/72,326.73
  6. Step 6: Final answer
    x = 62,713.75

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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.