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Finding the Fourth Proportional to 295,802.70, 443,982.45 and 155,661.90

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Solution

The fourth proportional to 295,802.70, 443,982.45 and 155,661.90 is: 233,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,802.70 : 443,982.45 = 155,661.90 : x
  2. Step 2: Convert to fraction form
    295,802.70/443,982.45 = 155,661.90/x
  3. Step 3: Cross multiply
    295,802.70x = 443,982.45 × 155,661.90
  4. Step 4: Simplify right side
    295,802.70x = 69,111,151,733.66
  5. Step 5: Solve for x
    x = 69,111,151,733.66/295,802.70
  6. Step 6: Final answer
    x = 233,639.35

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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.