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Finding the Fourth Proportional to 153,262.56, 211,437.36 and 93,612

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Solution

The fourth proportional to 153,262.56, 211,437.36 and 93,612 is: 129,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,262.56 : 211,437.36 = 93,612 : x
  2. Step 2: Convert to fraction form
    153,262.56/211,437.36 = 93,612/x
  3. Step 3: Cross multiply
    153,262.56x = 211,437.36 × 93,612
  4. Step 4: Simplify right side
    153,262.56x = 19,793,074,144.32
  5. Step 5: Solve for x
    x = 19,793,074,144.32/153,262.56
  6. Step 6: Final answer
    x = 129,144.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.