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Finding the Fourth Proportional to 69,655.51, 96,126.51 and 40,977.19

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Solution

The fourth proportional to 69,655.51, 96,126.51 and 40,977.19 is: 56,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,655.51 : 96,126.51 = 40,977.19 : x
  2. Step 2: Convert to fraction form
    69,655.51/96,126.51 = 40,977.19/x
  3. Step 3: Cross multiply
    69,655.51x = 96,126.51 × 40,977.19
  4. Step 4: Simplify right side
    69,655.51x = 3,938,994,264.31
  5. Step 5: Solve for x
    x = 3,938,994,264.31/69,655.51
  6. Step 6: Final answer
    x = 56,549.64

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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.