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Finding the Fourth Proportional to 316,719.95, 437,073.64 and 173,482.38

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Solution

The fourth proportional to 316,719.95, 437,073.64 and 173,482.38 is: 239,405.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,719.95 : 437,073.64 = 173,482.38 : x
  2. Step 2: Convert to fraction form
    316,719.95/437,073.64 = 173,482.38/x
  3. Step 3: Cross multiply
    316,719.95x = 437,073.64 × 173,482.38
  4. Step 4: Simplify right side
    316,719.95x = 75,824,574,868.76
  5. Step 5: Solve for x
    x = 75,824,574,868.76/316,719.95
  6. Step 6: Final answer
    x = 239,405.75

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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.