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Finding the Fourth Proportional to 272,041.47, 375,309.72 and 157,299.03

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Solution

The fourth proportional to 272,041.47, 375,309.72 and 157,299.03 is: 217,010.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,041.47 : 375,309.72 = 157,299.03 : x
  2. Step 2: Convert to fraction form
    272,041.47/375,309.72 = 157,299.03/x
  3. Step 3: Cross multiply
    272,041.47x = 375,309.72 × 157,299.03
  4. Step 4: Simplify right side
    272,041.47x = 59,035,854,905.57
  5. Step 5: Solve for x
    x = 59,035,854,905.57/272,041.47
  6. Step 6: Final answer
    x = 217,010.50

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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.