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Finding the Fourth Proportional to 176,409.60, 243,440.64 and 104,789.76

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Solution

The fourth proportional to 176,409.60, 243,440.64 and 104,789.76 is: 144,607.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,409.60 : 243,440.64 = 104,789.76 : x
  2. Step 2: Convert to fraction form
    176,409.60/243,440.64 = 104,789.76/x
  3. Step 3: Cross multiply
    176,409.60x = 243,440.64 × 104,789.76
  4. Step 4: Simplify right side
    176,409.60x = 25,510,086,239.85
  5. Step 5: Solve for x
    x = 25,510,086,239.85/176,409.60
  6. Step 6: Final answer
    x = 144,607.13

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1.5x scale

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.