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Finding the Fourth Proportional to 291,316.60, 436,976.27 and 101,776.15

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Solution

The fourth proportional to 291,316.60, 436,976.27 and 101,776.15 is: 152,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,316.60 : 436,976.27 = 101,776.15 : x
  2. Step 2: Convert to fraction form
    291,316.60/436,976.27 = 101,776.15/x
  3. Step 3: Cross multiply
    291,316.60x = 436,976.27 × 101,776.15
  4. Step 4: Simplify right side
    291,316.60x = 44,473,760,362.97
  5. Step 5: Solve for x
    x = 44,473,760,362.97/291,316.60
  6. Step 6: Final answer
    x = 152,664.70

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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.