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Finding the Fourth Proportional to 134,783.67, 186,001.50 and 74,354.47

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Solution

The fourth proportional to 134,783.67, 186,001.50 and 74,354.47 is: 102,609.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,783.67 : 186,001.50 = 74,354.47 : x
  2. Step 2: Convert to fraction form
    134,783.67/186,001.50 = 74,354.47/x
  3. Step 3: Cross multiply
    134,783.67x = 186,001.50 × 74,354.47
  4. Step 4: Simplify right side
    134,783.67x = 13,830,042,951.71
  5. Step 5: Solve for x
    x = 13,830,042,951.71/134,783.67
  6. Step 6: Final answer
    x = 102,609.19

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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.