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Finding the Fourth Proportional to 316,108.01, 436,232.50 and 172,864.98

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Solution

The fourth proportional to 316,108.01, 436,232.50 and 172,864.98 is: 238,555.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,108.01 : 436,232.50 = 172,864.98 : x
  2. Step 2: Convert to fraction form
    316,108.01/436,232.50 = 172,864.98/x
  3. Step 3: Cross multiply
    316,108.01x = 436,232.50 × 172,864.98
  4. Step 4: Simplify right side
    316,108.01x = 75,409,321,955.69
  5. Step 5: Solve for x
    x = 75,409,321,955.69/316,108.01
  6. Step 6: Final answer
    x = 238,555.55

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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.