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Finding the Fourth Proportional to 210,948.72, 316,382.76 and 63,204.72

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Solution

The fourth proportional to 210,948.72, 316,382.76 and 63,204.72 is: 94,795.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,948.72 : 316,382.76 = 63,204.72 : x
  2. Step 2: Convert to fraction form
    210,948.72/316,382.76 = 63,204.72/x
  3. Step 3: Cross multiply
    210,948.72x = 316,382.76 × 63,204.72
  4. Step 4: Simplify right side
    210,948.72x = 19,996,883,758.63
  5. Step 5: Solve for x
    x = 19,996,883,758.63/210,948.72
  6. Step 6: Final answer
    x = 94,795.00

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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.