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Finding the Fourth Proportional to 172,541.81, 238,113 and 93,965.06

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Solution

The fourth proportional to 172,541.81, 238,113 and 93,965.06 is: 129,674.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,541.81 : 238,113 = 93,965.06 : x
  2. Step 2: Convert to fraction form
    172,541.81/238,113 = 93,965.06/x
  3. Step 3: Cross multiply
    172,541.81x = 238,113 × 93,965.06
  4. Step 4: Simplify right side
    172,541.81x = 22,374,302,927.06
  5. Step 5: Solve for x
    x = 22,374,302,927.06/172,541.81
  6. Step 6: Final answer
    x = 129,674.67

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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.