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Finding the Fourth Proportional to 325,116.84, 487,691.58 and 103,518.12

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Solution

The fourth proportional to 325,116.84, 487,691.58 and 103,518.12 is: 155,282.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,116.84 : 487,691.58 = 103,518.12 : x
  2. Step 2: Convert to fraction form
    325,116.84/487,691.58 = 103,518.12/x
  3. Step 3: Cross multiply
    325,116.84x = 487,691.58 × 103,518.12
  4. Step 4: Simplify right side
    325,116.84x = 50,484,915,501.43
  5. Step 5: Solve for x
    x = 50,484,915,501.43/325,116.84
  6. Step 6: Final answer
    x = 155,282.38

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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.