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Finding the Fourth Proportional to 210,713.68, 316,046.16 and 52,930.08

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Solution

The fourth proportional to 210,713.68, 316,046.16 and 52,930.08 is: 79,389.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,713.68 : 316,046.16 = 52,930.08 : x
  2. Step 2: Convert to fraction form
    210,713.68/316,046.16 = 52,930.08/x
  3. Step 3: Cross multiply
    210,713.68x = 316,046.16 × 52,930.08
  4. Step 4: Simplify right side
    210,713.68x = 16,728,348,532.49
  5. Step 5: Solve for x
    x = 16,728,348,532.49/210,713.68
  6. Step 6: Final answer
    x = 79,389.00

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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.