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Finding the Fourth Proportional to 76,137.99, 114,071.32 and 64,930.98

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Solution

The fourth proportional to 76,137.99, 114,071.32 and 64,930.98 is: 97,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,137.99 : 114,071.32 = 64,930.98 : x
  2. Step 2: Convert to fraction form
    76,137.99/114,071.32 = 64,930.98/x
  3. Step 3: Cross multiply
    76,137.99x = 114,071.32 × 64,930.98
  4. Step 4: Simplify right side
    76,137.99x = 7,406,762,597.49
  5. Step 5: Solve for x
    x = 7,406,762,597.49/76,137.99
  6. Step 6: Final answer
    x = 97,280.77

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1.5x scale

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.