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Finding the Fourth Proportional to 92,567.76, 127,748.16 and 54,328.97

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Solution

The fourth proportional to 92,567.76, 127,748.16 and 54,328.97 is: 74,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,567.76 : 127,748.16 = 54,328.97 : x
  2. Step 2: Convert to fraction form
    92,567.76/127,748.16 = 54,328.97/x
  3. Step 3: Cross multiply
    92,567.76x = 127,748.16 × 54,328.97
  4. Step 4: Simplify right side
    92,567.76x = 6,940,425,313.45
  5. Step 5: Solve for x
    x = 6,940,425,313.45/92,567.76
  6. Step 6: Final answer
    x = 74,976.70

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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.