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Finding the Fourth Proportional to 114,030.90, 157,360.05 and 63,729.90

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Solution

The fourth proportional to 114,030.90, 157,360.05 and 63,729.90 is: 87,945.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,030.90 : 157,360.05 = 63,729.90 : x
  2. Step 2: Convert to fraction form
    114,030.90/157,360.05 = 63,729.90/x
  3. Step 3: Cross multiply
    114,030.90x = 157,360.05 × 63,729.90
  4. Step 4: Simplify right side
    114,030.90x = 10,028,540,250.50
  5. Step 5: Solve for x
    x = 10,028,540,250.50/114,030.90
  6. Step 6: Final answer
    x = 87,945.81

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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.