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Finding the Fourth Proportional to 259,653.94, 358,323.51 and 140,421.94

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Solution

The fourth proportional to 259,653.94, 358,323.51 and 140,421.94 is: 193,782.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,653.94 : 358,323.51 = 140,421.94 : x
  2. Step 2: Convert to fraction form
    259,653.94/358,323.51 = 140,421.94/x
  3. Step 3: Cross multiply
    259,653.94x = 358,323.51 × 140,421.94
  4. Step 4: Simplify right side
    259,653.94x = 50,316,482,052.58
  5. Step 5: Solve for x
    x = 50,316,482,052.58/259,653.94
  6. Step 6: Final answer
    x = 193,782.86

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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.