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Finding the Fourth Proportional to 73,145.48, 109,628.28 and 58,293.32

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Solution

The fourth proportional to 73,145.48, 109,628.28 and 58,293.32 is: 87,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,145.48 : 109,628.28 = 58,293.32 : x
  2. Step 2: Convert to fraction form
    73,145.48/109,628.28 = 58,293.32/x
  3. Step 3: Cross multiply
    73,145.48x = 109,628.28 × 58,293.32
  4. Step 4: Simplify right side
    73,145.48x = 6,390,596,407.09
  5. Step 5: Solve for x
    x = 6,390,596,407.09/73,145.48
  6. Step 6: Final answer
    x = 87,368.30

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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.