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Finding the Fourth Proportional to 272,394.54, 375,897.60 and 157,657.32

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Solution

The fourth proportional to 272,394.54, 375,897.60 and 157,657.32 is: 217,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,394.54 : 375,897.60 = 157,657.32 : x
  2. Step 2: Convert to fraction form
    272,394.54/375,897.60 = 157,657.32/x
  3. Step 3: Cross multiply
    272,394.54x = 375,897.60 × 157,657.32
  4. Step 4: Simplify right side
    272,394.54x = 59,263,008,210.43
  5. Step 5: Solve for x
    x = 59,263,008,210.43/272,394.54
  6. Step 6: Final answer
    x = 217,563.13

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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.