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Finding the Fourth Proportional to 234,015.91, 350,705.78 and 98,967.72

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Solution

The fourth proportional to 234,015.91, 350,705.78 and 98,967.72 is: 148,317.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,015.91 : 350,705.78 = 98,967.72 : x
  2. Step 2: Convert to fraction form
    234,015.91/350,705.78 = 98,967.72/x
  3. Step 3: Cross multiply
    234,015.91x = 350,705.78 × 98,967.72
  4. Step 4: Simplify right side
    234,015.91x = 34,708,549,931.31
  5. Step 5: Solve for x
    x = 34,708,549,931.31/234,015.91
  6. Step 6: Final answer
    x = 148,317.05

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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.