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Finding the Fourth Proportional to 234,731.60, 352,117.11 and 74,830.28

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Solution

The fourth proportional to 234,731.60, 352,117.11 and 74,830.28 is: 112,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,731.60 : 352,117.11 = 74,830.28 : x
  2. Step 2: Convert to fraction form
    234,731.60/352,117.11 = 74,830.28/x
  3. Step 3: Cross multiply
    234,731.60x = 352,117.11 × 74,830.28
  4. Step 4: Simplify right side
    234,731.60x = 26,349,020,173.51
  5. Step 5: Solve for x
    x = 26,349,020,173.51/234,731.60
  6. Step 6: Final answer
    x = 112,251.70

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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.