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Finding the Fourth Proportional to 98,666.96, 136,157.64 and 53,954

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Solution

The fourth proportional to 98,666.96, 136,157.64 and 53,954 is: 74,455.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,666.96 : 136,157.64 = 53,954 : x
  2. Step 2: Convert to fraction form
    98,666.96/136,157.64 = 53,954/x
  3. Step 3: Cross multiply
    98,666.96x = 136,157.64 × 53,954
  4. Step 4: Simplify right side
    98,666.96x = 7,346,249,308.56
  5. Step 5: Solve for x
    x = 7,346,249,308.56/98,666.96
  6. Step 6: Final answer
    x = 74,455.01

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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.