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Finding the Fourth Proportional to 316,877.79, 437,293.08 and 171,685.93

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Solution

The fourth proportional to 316,877.79, 437,293.08 and 171,685.93 is: 236,927.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,877.79 : 437,293.08 = 171,685.93 : x
  2. Step 2: Convert to fraction form
    316,877.79/437,293.08 = 171,685.93/x
  3. Step 3: Cross multiply
    316,877.79x = 437,293.08 × 171,685.93
  4. Step 4: Simplify right side
    316,877.79x = 75,077,069,122.36
  5. Step 5: Solve for x
    x = 75,077,069,122.36/316,877.79
  6. Step 6: Final answer
    x = 236,927.52

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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.