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Finding the Fourth Proportional to 345,774.34, 518,661.50 and 93,055.38

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Solution

The fourth proportional to 345,774.34, 518,661.50 and 93,055.38 is: 139,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,774.34 : 518,661.50 = 93,055.38 : x
  2. Step 2: Convert to fraction form
    345,774.34/518,661.50 = 93,055.38/x
  3. Step 3: Cross multiply
    345,774.34x = 518,661.50 × 93,055.38
  4. Step 4: Simplify right side
    345,774.34x = 48,264,243,481.08
  5. Step 5: Solve for x
    x = 48,264,243,481.08/345,774.34
  6. Step 6: Final answer
    x = 139,583.07

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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.