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Finding the Fourth Proportional to 113,807.60, 170,565.60 and 101,268.80

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Solution

The fourth proportional to 113,807.60, 170,565.60 and 101,268.80 is: 151,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,807.60 : 170,565.60 = 101,268.80 : x
  2. Step 2: Convert to fraction form
    113,807.60/170,565.60 = 101,268.80/x
  3. Step 3: Cross multiply
    113,807.60x = 170,565.60 × 101,268.80
  4. Step 4: Simplify right side
    113,807.60x = 17,272,973,633.28
  5. Step 5: Solve for x
    x = 17,272,973,633.28/113,807.60
  6. Step 6: Final answer
    x = 151,773.46

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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.