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Finding the Fourth Proportional to 91,264.88, 136,703.23 and 43,810.02

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Solution

The fourth proportional to 91,264.88, 136,703.23 and 43,810.02 is: 65,621.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,264.88 : 136,703.23 = 43,810.02 : x
  2. Step 2: Convert to fraction form
    91,264.88/136,703.23 = 43,810.02/x
  3. Step 3: Cross multiply
    91,264.88x = 136,703.23 × 43,810.02
  4. Step 4: Simplify right side
    91,264.88x = 5,988,971,130.84
  5. Step 5: Solve for x
    x = 5,988,971,130.84/91,264.88
  6. Step 6: Final answer
    x = 65,621.86

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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.