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Finding the Fourth Proportional to 124,437, 171,725.78 and 67,848.60

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Solution

The fourth proportional to 124,437, 171,725.78 and 67,848.60 is: 93,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,437 : 171,725.78 = 67,848.60 : x
  2. Step 2: Convert to fraction form
    124,437/171,725.78 = 67,848.60/x
  3. Step 3: Cross multiply
    124,437x = 171,725.78 × 67,848.60
  4. Step 4: Simplify right side
    124,437x = 11,651,353,756.91
  5. Step 5: Solve for x
    x = 11,651,353,756.91/124,437
  6. Step 6: Final answer
    x = 93,632.55

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1.5x scale

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.