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Finding the Fourth Proportional to 186,953.60, 280,041.60 and 155,849.60

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Solution

The fourth proportional to 186,953.60, 280,041.60 and 155,849.60 is: 233,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,953.60 : 280,041.60 = 155,849.60 : x
  2. Step 2: Convert to fraction form
    186,953.60/280,041.60 = 155,849.60/x
  3. Step 3: Cross multiply
    186,953.60x = 280,041.60 × 155,849.60
  4. Step 4: Simplify right side
    186,953.60x = 43,644,371,343.36
  5. Step 5: Solve for x
    x = 43,644,371,343.36/186,953.60
  6. Step 6: Final answer
    x = 233,450.29

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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.