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Finding the Fourth Proportional to 127,155.08, 175,433.46 and 73,433

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Solution

The fourth proportional to 127,155.08, 175,433.46 and 73,433 is: 101,314.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,155.08 : 175,433.46 = 73,433 : x
  2. Step 2: Convert to fraction form
    127,155.08/175,433.46 = 73,433/x
  3. Step 3: Cross multiply
    127,155.08x = 175,433.46 × 73,433
  4. Step 4: Simplify right side
    127,155.08x = 12,882,605,268.18
  5. Step 5: Solve for x
    x = 12,882,605,268.18/127,155.08
  6. Step 6: Final answer
    x = 101,314.12

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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.