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Finding the Fourth Proportional to 124,932.34, 187,315.47 and 68,798.89

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Solution

The fourth proportional to 124,932.34, 187,315.47 and 68,798.89 is: 103,152.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,932.34 : 187,315.47 = 68,798.89 : x
  2. Step 2: Convert to fraction form
    124,932.34/187,315.47 = 68,798.89/x
  3. Step 3: Cross multiply
    124,932.34x = 187,315.47 × 68,798.89
  4. Step 4: Simplify right side
    124,932.34x = 12,887,095,947.54
  5. Step 5: Solve for x
    x = 12,887,095,947.54/124,932.34
  6. Step 6: Final answer
    x = 103,152.60

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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.