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Finding the Fourth Proportional to 210,957.06, 316,395.27 and 63,213.06

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Solution

The fourth proportional to 210,957.06, 316,395.27 and 63,213.06 is: 94,807.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,957.06 : 316,395.27 = 63,213.06 : x
  2. Step 2: Convert to fraction form
    210,957.06/316,395.27 = 63,213.06/x
  3. Step 3: Cross multiply
    210,957.06x = 316,395.27 × 63,213.06
  4. Step 4: Simplify right side
    210,957.06x = 20,000,314,609.76
  5. Step 5: Solve for x
    x = 20,000,314,609.76/210,957.06
  6. Step 6: Final answer
    x = 94,807.51

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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.