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Finding the Fourth Proportional to 345,832.88, 518,705.58 and 93,133.54

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Solution

The fourth proportional to 345,832.88, 518,705.58 and 93,133.54 is: 139,688.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,832.88 : 518,705.58 = 93,133.54 : x
  2. Step 2: Convert to fraction form
    345,832.88/518,705.58 = 93,133.54/x
  3. Step 3: Cross multiply
    345,832.88x = 518,705.58 × 93,133.54
  4. Step 4: Simplify right side
    345,832.88x = 48,308,886,883.15
  5. Step 5: Solve for x
    x = 48,308,886,883.15/345,832.88
  6. Step 6: Final answer
    x = 139,688.53

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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.