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Finding the Fourth Proportional to 92,744.60, 127,987.51 and 52,457.49

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Solution

The fourth proportional to 92,744.60, 127,987.51 and 52,457.49 is: 72,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,744.60 : 127,987.51 = 52,457.49 : x
  2. Step 2: Convert to fraction form
    92,744.60/127,987.51 = 52,457.49/x
  3. Step 3: Cross multiply
    92,744.60x = 127,987.51 × 52,457.49
  4. Step 4: Simplify right side
    92,744.60x = 6,713,903,493.16
  5. Step 5: Solve for x
    x = 6,713,903,493.16/92,744.60
  6. Step 6: Final answer
    x = 72,391.32

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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.