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Finding the Fourth Proportional to 94,585, 141,879.66 and 28,023.88

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Solution

The fourth proportional to 94,585, 141,879.66 and 28,023.88 is: 42,036.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,585 : 141,879.66 = 28,023.88 : x
  2. Step 2: Convert to fraction form
    94,585/141,879.66 = 28,023.88/x
  3. Step 3: Cross multiply
    94,585x = 141,879.66 × 28,023.88
  4. Step 4: Simplify right side
    94,585x = 3,976,018,566.28
  5. Step 5: Solve for x
    x = 3,976,018,566.28/94,585
  6. Step 6: Final answer
    x = 42,036.46

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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.