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Finding the Fourth Proportional to 98,739.93, 136,202.63 and 60,516.64

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Solution

The fourth proportional to 98,739.93, 136,202.63 and 60,516.64 is: 83,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,739.93 : 136,202.63 = 60,516.64 : x
  2. Step 2: Convert to fraction form
    98,739.93/136,202.63 = 60,516.64/x
  3. Step 3: Cross multiply
    98,739.93x = 136,202.63 × 60,516.64
  4. Step 4: Simplify right side
    98,739.93x = 8,242,525,526.76
  5. Step 5: Solve for x
    x = 8,242,525,526.76/98,739.93
  6. Step 6: Final answer
    x = 83,477.13

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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.