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Finding the Fourth Proportional to 210,907.60, 316,269.24 and 63,129.04

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Solution

The fourth proportional to 210,907.60, 316,269.24 and 63,129.04 is: 94,665.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,907.60 : 316,269.24 = 63,129.04 : x
  2. Step 2: Convert to fraction form
    210,907.60/316,269.24 = 63,129.04/x
  3. Step 3: Cross multiply
    210,907.60x = 316,269.24 × 63,129.04
  4. Step 4: Simplify right side
    210,907.60x = 19,965,773,502.73
  5. Step 5: Solve for x
    x = 19,965,773,502.73/210,907.60
  6. Step 6: Final answer
    x = 94,665.97

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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.