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Finding the Fourth Proportional to 251,689.60, 347,326.14 and 144,322.84

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Solution

The fourth proportional to 251,689.60, 347,326.14 and 144,322.84 is: 199,162.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,689.60 : 347,326.14 = 144,322.84 : x
  2. Step 2: Convert to fraction form
    251,689.60/347,326.14 = 144,322.84/x
  3. Step 3: Cross multiply
    251,689.60x = 347,326.14 × 144,322.84
  4. Step 4: Simplify right side
    251,689.60x = 50,127,094,931.04
  5. Step 5: Solve for x
    x = 50,127,094,931.04/251,689.60
  6. Step 6: Final answer
    x = 199,162.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.