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Finding the Fourth Proportional to 210,737, 316,039.88 and 70,462.84

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Solution

The fourth proportional to 210,737, 316,039.88 and 70,462.84 is: 105,672.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,737 : 316,039.88 = 70,462.84 : x
  2. Step 2: Convert to fraction form
    210,737/316,039.88 = 70,462.84/x
  3. Step 3: Cross multiply
    210,737x = 316,039.88 × 70,462.84
  4. Step 4: Simplify right side
    210,737x = 22,269,067,498.06
  5. Step 5: Solve for x
    x = 22,269,067,498.06/210,737
  6. Step 6: Final answer
    x = 105,672.32

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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.