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Finding the Fourth Proportional to 316,535.76, 436,802.76 and 173,268.36

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Solution

The fourth proportional to 316,535.76, 436,802.76 and 173,268.36 is: 239,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,535.76 : 436,802.76 = 173,268.36 : x
  2. Step 2: Convert to fraction form
    316,535.76/436,802.76 = 173,268.36/x
  3. Step 3: Cross multiply
    316,535.76x = 436,802.76 × 173,268.36
  4. Step 4: Simplify right side
    316,535.76x = 75,684,097,868.67
  5. Step 5: Solve for x
    x = 75,684,097,868.67/316,535.76
  6. Step 6: Final answer
    x = 239,101.26

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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.