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Finding the Fourth Proportional to 216,357.62, 324,703.82 and 141,457.46

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Solution

The fourth proportional to 216,357.62, 324,703.82 and 141,457.46 is: 212,295.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,357.62 : 324,703.82 = 141,457.46 : x
  2. Step 2: Convert to fraction form
    216,357.62/324,703.82 = 141,457.46/x
  3. Step 3: Cross multiply
    216,357.62x = 324,703.82 × 141,457.46
  4. Step 4: Simplify right side
    216,357.62x = 45,931,776,359.62
  5. Step 5: Solve for x
    x = 45,931,776,359.62/216,357.62
  6. Step 6: Final answer
    x = 212,295.63

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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.