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Finding the Fourth Proportional to 101,848.80, 152,341.20 and 91,394.40

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Solution

The fourth proportional to 101,848.80, 152,341.20 and 91,394.40 is: 136,703.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,848.80 : 152,341.20 = 91,394.40 : x
  2. Step 2: Convert to fraction form
    101,848.80/152,341.20 = 91,394.40/x
  3. Step 3: Cross multiply
    101,848.80x = 152,341.20 × 91,394.40
  4. Step 4: Simplify right side
    101,848.80x = 13,923,132,569.28
  5. Step 5: Solve for x
    x = 13,923,132,569.28/101,848.80
  6. Step 6: Final answer
    x = 136,703.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.