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Finding the Fourth Proportional to 233,421.30, 350,131.95 and 115,323.30

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Solution

The fourth proportional to 233,421.30, 350,131.95 and 115,323.30 is: 172,984.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,421.30 : 350,131.95 = 115,323.30 : x
  2. Step 2: Convert to fraction form
    233,421.30/350,131.95 = 115,323.30/x
  3. Step 3: Cross multiply
    233,421.30x = 350,131.95 × 115,323.30
  4. Step 4: Simplify right side
    233,421.30x = 40,378,371,909.44
  5. Step 5: Solve for x
    x = 40,378,371,909.44/233,421.30
  6. Step 6: Final answer
    x = 172,984.95

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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.