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Finding the Fourth Proportional to 127,508.64, 191,275.36 and 46,477.68

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Solution

The fourth proportional to 127,508.64, 191,275.36 and 46,477.68 is: 69,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,508.64 : 191,275.36 = 46,477.68 : x
  2. Step 2: Convert to fraction form
    127,508.64/191,275.36 = 46,477.68/x
  3. Step 3: Cross multiply
    127,508.64x = 191,275.36 × 46,477.68
  4. Step 4: Simplify right side
    127,508.64x = 8,890,034,973.96
  5. Step 5: Solve for x
    x = 8,890,034,973.96/127,508.64
  6. Step 6: Final answer
    x = 69,721.04

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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.