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Finding the Fourth Proportional to 216,737.16, 325,140.45 and 66,942.24

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Solution

The fourth proportional to 216,737.16, 325,140.45 and 66,942.24 is: 100,424.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,737.16 : 325,140.45 = 66,942.24 : x
  2. Step 2: Convert to fraction form
    216,737.16/325,140.45 = 66,942.24/x
  3. Step 3: Cross multiply
    216,737.16x = 325,140.45 × 66,942.24
  4. Step 4: Simplify right side
    216,737.16x = 21,765,630,037.61
  5. Step 5: Solve for x
    x = 21,765,630,037.61/216,737.16
  6. Step 6: Final answer
    x = 100,424.08

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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.