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Finding the Fourth Proportional to 325,124.40, 487,492.20 and 167,660.40

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Solution

The fourth proportional to 325,124.40, 487,492.20 and 167,660.40 is: 251,390.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,124.40 : 487,492.20 = 167,660.40 : x
  2. Step 2: Convert to fraction form
    325,124.40/487,492.20 = 167,660.40/x
  3. Step 3: Cross multiply
    325,124.40x = 487,492.20 × 167,660.40
  4. Step 4: Simplify right side
    325,124.40x = 81,733,137,248.88
  5. Step 5: Solve for x
    x = 81,733,137,248.88/325,124.40
  6. Step 6: Final answer
    x = 251,390.35

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1.5x scale

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.