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Finding the Fourth Proportional to 235,172.38, 352,802.31 and 77,411.92

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Solution

The fourth proportional to 235,172.38, 352,802.31 and 77,411.92 is: 116,132.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,172.38 : 352,802.31 = 77,411.92 : x
  2. Step 2: Convert to fraction form
    235,172.38/352,802.31 = 77,411.92/x
  3. Step 3: Cross multiply
    235,172.38x = 352,802.31 × 77,411.92
  4. Step 4: Simplify right side
    235,172.38x = 27,311,102,433.52
  5. Step 5: Solve for x
    x = 27,311,102,433.52/235,172.38
  6. Step 6: Final answer
    x = 116,132.27

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1.5x scale

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.