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Finding the Fourth Proportional to 155,534.40, 232,718.40 and 103,046.40

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Solution

The fourth proportional to 155,534.40, 232,718.40 and 103,046.40 is: 154,183.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,534.40 : 232,718.40 = 103,046.40 : x
  2. Step 2: Convert to fraction form
    155,534.40/232,718.40 = 103,046.40/x
  3. Step 3: Cross multiply
    155,534.40x = 232,718.40 × 103,046.40
  4. Step 4: Simplify right side
    155,534.40x = 23,980,793,333.76
  5. Step 5: Solve for x
    x = 23,980,793,333.76/155,534.40
  6. Step 6: Final answer
    x = 154,183.21

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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.