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Finding the Fourth Proportional to 91,094.40, 125,710.92 and 50,810.76

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Solution

The fourth proportional to 91,094.40, 125,710.92 and 50,810.76 is: 70,119.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,094.40 : 125,710.92 = 50,810.76 : x
  2. Step 2: Convert to fraction form
    91,094.40/125,710.92 = 50,810.76/x
  3. Step 3: Cross multiply
    91,094.40x = 125,710.92 × 50,810.76
  4. Step 4: Simplify right side
    91,094.40x = 6,387,467,385.50
  5. Step 5: Solve for x
    x = 6,387,467,385.50/91,094.40
  6. Step 6: Final answer
    x = 70,119.21

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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.