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Finding the Fourth Proportional to 172,810.50, 238,478.49 and 93,322.50

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Solution

The fourth proportional to 172,810.50, 238,478.49 and 93,322.50 is: 128,785.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,810.50 : 238,478.49 = 93,322.50 : x
  2. Step 2: Convert to fraction form
    172,810.50/238,478.49 = 93,322.50/x
  3. Step 3: Cross multiply
    172,810.50x = 238,478.49 × 93,322.50
  4. Step 4: Simplify right side
    172,810.50x = 22,255,408,883.03
  5. Step 5: Solve for x
    x = 22,255,408,883.03/172,810.50
  6. Step 6: Final answer
    x = 128,785.05

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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.