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Finding the Fourth Proportional to 148,572.48, 205,008.32 and 84,897.96

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Solution

The fourth proportional to 148,572.48, 205,008.32 and 84,897.96 is: 117,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,572.48 : 205,008.32 = 84,897.96 : x
  2. Step 2: Convert to fraction form
    148,572.48/205,008.32 = 84,897.96/x
  3. Step 3: Cross multiply
    148,572.48x = 205,008.32 × 84,897.96
  4. Step 4: Simplify right side
    148,572.48x = 17,404,788,151.03
  5. Step 5: Solve for x
    x = 17,404,788,151.03/148,572.48
  6. Step 6: Final answer
    x = 117,146.78

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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.