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Finding the Fourth Proportional to 92,549.72, 127,720.94 and 56,759.47

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Solution

The fourth proportional to 92,549.72, 127,720.94 and 56,759.47 is: 78,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,549.72 : 127,720.94 = 56,759.47 : x
  2. Step 2: Convert to fraction form
    92,549.72/127,720.94 = 56,759.47/x
  3. Step 3: Cross multiply
    92,549.72x = 127,720.94 × 56,759.47
  4. Step 4: Simplify right side
    92,549.72x = 7,249,372,259.20
  5. Step 5: Solve for x
    x = 7,249,372,259.20/92,549.72
  6. Step 6: Final answer
    x = 78,329.49

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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.