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Finding the Fourth Proportional to 64,430.52, 88,913.88 and 36,136.14

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Solution

The fourth proportional to 64,430.52, 88,913.88 and 36,136.14 is: 49,867.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.52 : 88,913.88 = 36,136.14 : x
  2. Step 2: Convert to fraction form
    64,430.52/88,913.88 = 36,136.14/x
  3. Step 3: Cross multiply
    64,430.52x = 88,913.88 × 36,136.14
  4. Step 4: Simplify right side
    64,430.52x = 3,213,004,415.62
  5. Step 5: Solve for x
    x = 3,213,004,415.62/64,430.52
  6. Step 6: Final answer
    x = 49,867.74

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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.