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Finding the Fourth Proportional to 92,412.51, 127,529.40 and 49,971.04

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Solution

The fourth proportional to 92,412.51, 127,529.40 and 49,971.04 is: 68,960.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,412.51 : 127,529.40 = 49,971.04 : x
  2. Step 2: Convert to fraction form
    92,412.51/127,529.40 = 49,971.04/x
  3. Step 3: Cross multiply
    92,412.51x = 127,529.40 × 49,971.04
  4. Step 4: Simplify right side
    92,412.51x = 6,372,777,334.50
  5. Step 5: Solve for x
    x = 6,372,777,334.50/92,412.51
  6. Step 6: Final answer
    x = 68,960.11

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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.