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Finding the Fourth Proportional to 92,470.69, 127,568.86 and 54,210.79

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Solution

The fourth proportional to 92,470.69, 127,568.86 and 54,210.79 is: 74,787.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,470.69 : 127,568.86 = 54,210.79 : x
  2. Step 2: Convert to fraction form
    92,470.69/127,568.86 = 54,210.79/x
  3. Step 3: Cross multiply
    92,470.69x = 127,568.86 × 54,210.79
  4. Step 4: Simplify right side
    92,470.69x = 6,915,608,680.00
  5. Step 5: Solve for x
    x = 6,915,608,680.00/92,470.69
  6. Step 6: Final answer
    x = 74,787.03

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1.5x scale

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.