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Finding the Fourth Proportional to 340,533.32, 510,799.66 and 91,208.52

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Solution

The fourth proportional to 340,533.32, 510,799.66 and 91,208.52 is: 136,812.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,533.32 : 510,799.66 = 91,208.52 : x
  2. Step 2: Convert to fraction form
    340,533.32/510,799.66 = 91,208.52/x
  3. Step 3: Cross multiply
    340,533.32x = 510,799.66 × 91,208.52
  4. Step 4: Simplify right side
    340,533.32x = 46,589,281,005.10
  5. Step 5: Solve for x
    x = 46,589,281,005.10/340,533.32
  6. Step 6: Final answer
    x = 136,812.69

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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.