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Finding the Fourth Proportional to 210,508.74, 315,784.17 and 60,752.70

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Solution

The fourth proportional to 210,508.74, 315,784.17 and 60,752.70 is: 91,135.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,508.74 : 315,784.17 = 60,752.70 : x
  2. Step 2: Convert to fraction form
    210,508.74/315,784.17 = 60,752.70/x
  3. Step 3: Cross multiply
    210,508.74x = 315,784.17 × 60,752.70
  4. Step 4: Simplify right side
    210,508.74x = 19,184,739,062.07
  5. Step 5: Solve for x
    x = 19,184,739,062.07/210,508.74
  6. Step 6: Final answer
    x = 91,135.12

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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.