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Finding the Fourth Proportional to 77,473.74, 116,062.56 and 52,390.86

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Solution

The fourth proportional to 77,473.74, 116,062.56 and 52,390.86 is: 78,486.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,473.74 : 116,062.56 = 52,390.86 : x
  2. Step 2: Convert to fraction form
    77,473.74/116,062.56 = 52,390.86/x
  3. Step 3: Cross multiply
    77,473.74x = 116,062.56 × 52,390.86
  4. Step 4: Simplify right side
    77,473.74x = 6,080,617,332.20
  5. Step 5: Solve for x
    x = 6,080,617,332.20/77,473.74
  6. Step 6: Final answer
    x = 78,486.17

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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.