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Finding the Fourth Proportional to 117,085.62, 175,628.42 and 28,339.12

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Solution

The fourth proportional to 117,085.62, 175,628.42 and 28,339.12 is: 42,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,085.62 : 175,628.42 = 28,339.12 : x
  2. Step 2: Convert to fraction form
    117,085.62/175,628.42 = 28,339.12/x
  3. Step 3: Cross multiply
    117,085.62x = 175,628.42 × 28,339.12
  4. Step 4: Simplify right side
    117,085.62x = 4,977,154,869.79
  5. Step 5: Solve for x
    x = 4,977,154,869.79/117,085.62
  6. Step 6: Final answer
    x = 42,508.68

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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.