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Finding the Fourth Proportional to 157,323.60, 217,021.28 and 93,649.10

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Solution

The fourth proportional to 157,323.60, 217,021.28 and 93,649.10 is: 129,184.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,323.60 : 217,021.28 = 93,649.10 : x
  2. Step 2: Convert to fraction form
    157,323.60/217,021.28 = 93,649.10/x
  3. Step 3: Cross multiply
    157,323.60x = 217,021.28 × 93,649.10
  4. Step 4: Simplify right side
    157,323.60x = 20,323,845,999.50
  5. Step 5: Solve for x
    x = 20,323,845,999.50/157,323.60
  6. Step 6: Final answer
    x = 129,184.98

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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.