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Finding the Fourth Proportional to 76,136.99, 114,069.82 and 64,929.98

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Solution

The fourth proportional to 76,136.99, 114,069.82 and 64,929.98 is: 97,279.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,136.99 : 114,069.82 = 64,929.98 : x
  2. Step 2: Convert to fraction form
    76,136.99/114,069.82 = 64,929.98/x
  3. Step 3: Cross multiply
    76,136.99x = 114,069.82 × 64,929.98
  4. Step 4: Simplify right side
    76,136.99x = 7,406,551,054.98
  5. Step 5: Solve for x
    x = 7,406,551,054.98/76,136.99
  6. Step 6: Final answer
    x = 97,279.28

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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.