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Finding the Fourth Proportional to 136,523.16, 204,975.90 and 70,010.28

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Solution

The fourth proportional to 136,523.16, 204,975.90 and 70,010.28 is: 105,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,523.16 : 204,975.90 = 70,010.28 : x
  2. Step 2: Convert to fraction form
    136,523.16/204,975.90 = 70,010.28/x
  3. Step 3: Cross multiply
    136,523.16x = 204,975.90 × 70,010.28
  4. Step 4: Simplify right side
    136,523.16x = 14,350,420,152.25
  5. Step 5: Solve for x
    x = 14,350,420,152.25/136,523.16
  6. Step 6: Final answer
    x = 105,113.45

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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.