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Finding the Fourth Proportional to 210,800.98, 316,252.05 and 61,051.62

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Solution

The fourth proportional to 210,800.98, 316,252.05 and 61,051.62 is: 91,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,800.98 : 316,252.05 = 61,051.62 : x
  2. Step 2: Convert to fraction form
    210,800.98/316,252.05 = 61,051.62/x
  3. Step 3: Cross multiply
    210,800.98x = 316,252.05 × 61,051.62
  4. Step 4: Simplify right side
    210,800.98x = 19,307,700,937.82
  5. Step 5: Solve for x
    x = 19,307,700,937.82/210,800.98
  6. Step 6: Final answer
    x = 91,592.08

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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.