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Finding the Fourth Proportional to 186,225.72, 256,983.84 and 101,343.12

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Solution

The fourth proportional to 186,225.72, 256,983.84 and 101,343.12 is: 139,849.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,225.72 : 256,983.84 = 101,343.12 : x
  2. Step 2: Convert to fraction form
    186,225.72/256,983.84 = 101,343.12/x
  3. Step 3: Cross multiply
    186,225.72x = 256,983.84 × 101,343.12
  4. Step 4: Simplify right side
    186,225.72x = 26,043,544,135.18
  5. Step 5: Solve for x
    x = 26,043,544,135.18/186,225.72
  6. Step 6: Final answer
    x = 139,849.34

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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.