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Finding the Fourth Proportional to 127,802.64, 176,366.84 and 69,659.32

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Solution

The fourth proportional to 127,802.64, 176,366.84 and 69,659.32 is: 96,129.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,802.64 : 176,366.84 = 69,659.32 : x
  2. Step 2: Convert to fraction form
    127,802.64/176,366.84 = 69,659.32/x
  3. Step 3: Cross multiply
    127,802.64x = 176,366.84 × 69,659.32
  4. Step 4: Simplify right side
    127,802.64x = 12,285,594,144.95
  5. Step 5: Solve for x
    x = 12,285,594,144.95/127,802.64
  6. Step 6: Final answer
    x = 96,129.42

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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.