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Finding the Fourth Proportional to 124,386.75, 171,653.84 and 67,798.35

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Solution

The fourth proportional to 124,386.75, 171,653.84 and 67,798.35 is: 93,561.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,386.75 : 171,653.84 = 67,798.35 : x
  2. Step 2: Convert to fraction form
    124,386.75/171,653.84 = 67,798.35/x
  3. Step 3: Cross multiply
    124,386.75x = 171,653.84 × 67,798.35
  4. Step 4: Simplify right side
    124,386.75x = 11,637,846,784.17
  5. Step 5: Solve for x
    x = 11,637,846,784.17/124,386.75
  6. Step 6: Final answer
    x = 93,561.79

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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.