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Finding the Fourth Proportional to 117,089.55, 175,634.73 and 28,342.91

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Solution

The fourth proportional to 117,089.55, 175,634.73 and 28,342.91 is: 42,514.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,089.55 : 175,634.73 = 28,342.91 : x
  2. Step 2: Convert to fraction form
    117,089.55/175,634.73 = 28,342.91/x
  3. Step 3: Cross multiply
    117,089.55x = 175,634.73 × 28,342.91
  4. Step 4: Simplify right side
    117,089.55x = 4,977,999,784.35
  5. Step 5: Solve for x
    x = 4,977,999,784.35/117,089.55
  6. Step 6: Final answer
    x = 42,514.47

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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.