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Finding the Fourth Proportional to 172,751.85, 238,316.06 and 101,087.50

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Solution

The fourth proportional to 172,751.85, 238,316.06 and 101,087.50 is: 139,453.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,751.85 : 238,316.06 = 101,087.50 : x
  2. Step 2: Convert to fraction form
    172,751.85/238,316.06 = 101,087.50/x
  3. Step 3: Cross multiply
    172,751.85x = 238,316.06 × 101,087.50
  4. Step 4: Simplify right side
    172,751.85x = 24,090,774,715.25
  5. Step 5: Solve for x
    x = 24,090,774,715.25/172,751.85
  6. Step 6: Final answer
    x = 139,453.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.