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Finding the Fourth Proportional to 316,021.60, 473,264.40 and 167,951.20

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Solution

The fourth proportional to 316,021.60, 473,264.40 and 167,951.20 is: 251,518.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,021.60 : 473,264.40 = 167,951.20 : x
  2. Step 2: Convert to fraction form
    316,021.60/473,264.40 = 167,951.20/x
  3. Step 3: Cross multiply
    316,021.60x = 473,264.40 × 167,951.20
  4. Step 4: Simplify right side
    316,021.60x = 79,485,323,897.28
  5. Step 5: Solve for x
    x = 79,485,323,897.28/316,021.60
  6. Step 6: Final answer
    x = 251,518.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.