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Finding the Fourth Proportional to 145,730.52, 218,566.62 and 40,521.24

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Solution

The fourth proportional to 145,730.52, 218,566.62 and 40,521.24 is: 60,773.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,730.52 : 218,566.62 = 40,521.24 : x
  2. Step 2: Convert to fraction form
    145,730.52/218,566.62 = 40,521.24/x
  3. Step 3: Cross multiply
    145,730.52x = 218,566.62 × 40,521.24
  4. Step 4: Simplify right side
    145,730.52x = 8,856,590,465.01
  5. Step 5: Solve for x
    x = 8,856,590,465.01/145,730.52
  6. Step 6: Final answer
    x = 60,773.75

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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.