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Finding the Fourth Proportional to 72,038.52, 99,465.84 and 46,559.97

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Solution

The fourth proportional to 72,038.52, 99,465.84 and 46,559.97 is: 64,286.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,038.52 : 99,465.84 = 46,559.97 : x
  2. Step 2: Convert to fraction form
    72,038.52/99,465.84 = 46,559.97/x
  3. Step 3: Cross multiply
    72,038.52x = 99,465.84 × 46,559.97
  4. Step 4: Simplify right side
    72,038.52x = 4,631,126,526.42
  5. Step 5: Solve for x
    x = 4,631,126,526.42/72,038.52
  6. Step 6: Final answer
    x = 64,286.81

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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.