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Finding the Fourth Proportional to 234,912.40, 352,368.60 and 57,417.28

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Solution

The fourth proportional to 234,912.40, 352,368.60 and 57,417.28 is: 86,125.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,912.40 : 352,368.60 = 57,417.28 : x
  2. Step 2: Convert to fraction form
    234,912.40/352,368.60 = 57,417.28/x
  3. Step 3: Cross multiply
    234,912.40x = 352,368.60 × 57,417.28
  4. Step 4: Simplify right side
    234,912.40x = 20,232,046,569.41
  5. Step 5: Solve for x
    x = 20,232,046,569.41/234,912.40
  6. Step 6: Final answer
    x = 86,125.92

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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.