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Finding the Fourth Proportional to 223,934.32, 308,968.14 and 155,874.88

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Solution

The fourth proportional to 223,934.32, 308,968.14 and 155,874.88 is: 215,064.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,934.32 : 308,968.14 = 155,874.88 : x
  2. Step 2: Convert to fraction form
    223,934.32/308,968.14 = 155,874.88/x
  3. Step 3: Cross multiply
    223,934.32x = 308,968.14 × 155,874.88
  4. Step 4: Simplify right side
    223,934.32x = 48,160,371,746.32
  5. Step 5: Solve for x
    x = 48,160,371,746.32/223,934.32
  6. Step 6: Final answer
    x = 215,064.72

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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.