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Finding the Fourth Proportional to 124,502.46, 171,813.92 and 67,915.05

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Solution

The fourth proportional to 124,502.46, 171,813.92 and 67,915.05 is: 93,723.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,502.46 : 171,813.92 = 67,915.05 : x
  2. Step 2: Convert to fraction form
    124,502.46/171,813.92 = 67,915.05/x
  3. Step 3: Cross multiply
    124,502.46x = 171,813.92 × 67,915.05
  4. Step 4: Simplify right side
    124,502.46x = 11,668,750,967.50
  5. Step 5: Solve for x
    x = 11,668,750,967.50/124,502.46
  6. Step 6: Final answer
    x = 93,723.06

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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.