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Finding the Fourth Proportional to 117,143.77, 175,714.08 and 28,398.04

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Solution

The fourth proportional to 117,143.77, 175,714.08 and 28,398.04 is: 42,596.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,143.77 : 175,714.08 = 28,398.04 : x
  2. Step 2: Convert to fraction form
    117,143.77/175,714.08 = 28,398.04/x
  3. Step 3: Cross multiply
    117,143.77x = 175,714.08 × 28,398.04
  4. Step 4: Simplify right side
    117,143.77x = 4,989,935,472.40
  5. Step 5: Solve for x
    x = 4,989,935,472.40/117,143.77
  6. Step 6: Final answer
    x = 42,596.68

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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.