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Finding the Fourth Proportional to 316,869.60, 475,376.40 and 106,528.80

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Solution

The fourth proportional to 316,869.60, 475,376.40 and 106,528.80 is: 159,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,869.60 : 475,376.40 = 106,528.80 : x
  2. Step 2: Convert to fraction form
    316,869.60/475,376.40 = 106,528.80/x
  3. Step 3: Cross multiply
    316,869.60x = 475,376.40 × 106,528.80
  4. Step 4: Simplify right side
    316,869.60x = 50,641,277,440.32
  5. Step 5: Solve for x
    x = 50,641,277,440.32/316,869.60
  6. Step 6: Final answer
    x = 159,817.41

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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.