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Finding the Fourth Proportional to 134,840.80, 202,479.90 and 97,661.80

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Solution

The fourth proportional to 134,840.80, 202,479.90 and 97,661.80 is: 146,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,840.80 : 202,479.90 = 97,661.80 : x
  2. Step 2: Convert to fraction form
    134,840.80/202,479.90 = 97,661.80/x
  3. Step 3: Cross multiply
    134,840.80x = 202,479.90 × 97,661.80
  4. Step 4: Simplify right side
    134,840.80x = 19,774,551,497.82
  5. Step 5: Solve for x
    x = 19,774,551,497.82/134,840.80
  6. Step 6: Final answer
    x = 146,651.10

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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.