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Finding the Fourth Proportional to 270,700.80, 406,051.20 and 112,934.40

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Solution

The fourth proportional to 270,700.80, 406,051.20 and 112,934.40 is: 169,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,700.80 : 406,051.20 = 112,934.40 : x
  2. Step 2: Convert to fraction form
    270,700.80/406,051.20 = 112,934.40/x
  3. Step 3: Cross multiply
    270,700.80x = 406,051.20 × 112,934.40
  4. Step 4: Simplify right side
    270,700.80x = 45,857,148,641.28
  5. Step 5: Solve for x
    x = 45,857,148,641.28/270,700.80
  6. Step 6: Final answer
    x = 169,401.60

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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.