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Finding the Fourth Proportional to 210,960.50, 316,492.60 and 63,216.50

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Solution

The fourth proportional to 210,960.50, 316,492.60 and 63,216.50 is: 94,840.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,960.50 : 316,492.60 = 63,216.50 : x
  2. Step 2: Convert to fraction form
    210,960.50/316,492.60 = 63,216.50/x
  3. Step 3: Cross multiply
    210,960.50x = 316,492.60 × 63,216.50
  4. Step 4: Simplify right side
    210,960.50x = 20,007,554,447.90
  5. Step 5: Solve for x
    x = 20,007,554,447.90/210,960.50
  6. Step 6: Final answer
    x = 94,840.29

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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.