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Finding the Fourth Proportional to 52,876.80, 79,159.37 and 46,315.80

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Solution

The fourth proportional to 52,876.80, 79,159.37 and 46,315.80 is: 69,337.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,876.80 : 79,159.37 = 46,315.80 : x
  2. Step 2: Convert to fraction form
    52,876.80/79,159.37 = 46,315.80/x
  3. Step 3: Cross multiply
    52,876.80x = 79,159.37 × 46,315.80
  4. Step 4: Simplify right side
    52,876.80x = 3,666,329,549.05
  5. Step 5: Solve for x
    x = 3,666,329,549.05/52,876.80
  6. Step 6: Final answer
    x = 69,337.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.