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Finding the Fourth Proportional to 157,250.01, 216,999.28 and 85,628.46

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Solution

The fourth proportional to 157,250.01, 216,999.28 and 85,628.46 is: 118,164.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,250.01 : 216,999.28 = 85,628.46 : x
  2. Step 2: Convert to fraction form
    157,250.01/216,999.28 = 85,628.46/x
  3. Step 3: Cross multiply
    157,250.01x = 216,999.28 × 85,628.46
  4. Step 4: Simplify right side
    157,250.01x = 18,581,312,868.44
  5. Step 5: Solve for x
    x = 18,581,312,868.44/157,250.01
  6. Step 6: Final answer
    x = 118,164.15

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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.