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Finding the Fourth Proportional to 316,357.77, 436,573.76 and 173,117.85

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Solution

The fourth proportional to 316,357.77, 436,573.76 and 173,117.85 is: 238,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,357.77 : 436,573.76 = 173,117.85 : x
  2. Step 2: Convert to fraction form
    316,357.77/436,573.76 = 173,117.85/x
  3. Step 3: Cross multiply
    316,357.77x = 436,573.76 × 173,117.85
  4. Step 4: Simplify right side
    316,357.77x = 75,578,710,697.62
  5. Step 5: Solve for x
    x = 75,578,710,697.62/316,357.77
  6. Step 6: Final answer
    x = 238,902.65

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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.