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Finding the Fourth Proportional to 262,053.68, 393,146.76 and 112,218.80

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Solution

The fourth proportional to 262,053.68, 393,146.76 and 112,218.80 is: 168,356.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,053.68 : 393,146.76 = 112,218.80 : x
  2. Step 2: Convert to fraction form
    262,053.68/393,146.76 = 112,218.80/x
  3. Step 3: Cross multiply
    262,053.68x = 393,146.76 × 112,218.80
  4. Step 4: Simplify right side
    262,053.68x = 44,118,457,631.09
  5. Step 5: Solve for x
    x = 44,118,457,631.09/262,053.68
  6. Step 6: Final answer
    x = 168,356.57

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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.