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Finding the Fourth Proportional to 316,329.60, 436,544.64 and 173,095.68

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Solution

The fourth proportional to 316,329.60, 436,544.64 and 173,095.68 is: 238,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,329.60 : 436,544.64 = 173,095.68 : x
  2. Step 2: Convert to fraction form
    316,329.60/436,544.64 = 173,095.68/x
  3. Step 3: Cross multiply
    316,329.60x = 436,544.64 × 173,095.68
  4. Step 4: Simplify right side
    316,329.60x = 75,563,991,311.16
  5. Step 5: Solve for x
    x = 75,563,991,311.16/316,329.60
  6. Step 6: Final answer
    x = 238,877.40

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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.