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Finding the Fourth Proportional to 72,594.16, 100,136.49 and 45,689.96

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Solution

The fourth proportional to 72,594.16, 100,136.49 and 45,689.96 is: 63,024.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,594.16 : 100,136.49 = 45,689.96 : x
  2. Step 2: Convert to fraction form
    72,594.16/100,136.49 = 45,689.96/x
  3. Step 3: Cross multiply
    72,594.16x = 100,136.49 × 45,689.96
  4. Step 4: Simplify right side
    72,594.16x = 4,575,232,222.64
  5. Step 5: Solve for x
    x = 4,575,232,222.64/72,594.16
  6. Step 6: Final answer
    x = 63,024.80

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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.