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Finding the Fourth Proportional to 117,079.45, 175,619.18 and 28,332.97

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Solution

The fourth proportional to 117,079.45, 175,619.18 and 28,332.97 is: 42,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,079.45 : 175,619.18 = 28,332.97 : x
  2. Step 2: Convert to fraction form
    117,079.45/175,619.18 = 28,332.97/x
  3. Step 3: Cross multiply
    117,079.45x = 175,619.18 × 28,332.97
  4. Step 4: Simplify right side
    117,079.45x = 4,975,812,590.15
  5. Step 5: Solve for x
    x = 4,975,812,590.15/117,079.45
  6. Step 6: Final answer
    x = 42,499.45

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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.