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Finding the Fourth Proportional to 183,903.76, 253,793.78 and 103,329.72

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Solution

The fourth proportional to 183,903.76, 253,793.78 and 103,329.72 is: 142,598.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,903.76 : 253,793.78 = 103,329.72 : x
  2. Step 2: Convert to fraction form
    183,903.76/253,793.78 = 103,329.72/x
  3. Step 3: Cross multiply
    183,903.76x = 253,793.78 × 103,329.72
  4. Step 4: Simplify right side
    183,903.76x = 26,224,440,225.14
  5. Step 5: Solve for x
    x = 26,224,440,225.14/183,903.76
  6. Step 6: Final answer
    x = 142,598.72

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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.