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Finding the Fourth Proportional to 176,065.60, 263,709.60 and 70,830.40

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Solution

The fourth proportional to 176,065.60, 263,709.60 and 70,830.40 is: 106,089.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,065.60 : 263,709.60 = 70,830.40 : x
  2. Step 2: Convert to fraction form
    176,065.60/263,709.60 = 70,830.40/x
  3. Step 3: Cross multiply
    176,065.60x = 263,709.60 × 70,830.40
  4. Step 4: Simplify right side
    176,065.60x = 18,678,656,451.84
  5. Step 5: Solve for x
    x = 18,678,656,451.84/176,065.60
  6. Step 6: Final answer
    x = 106,089.19

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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.