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Finding the Fourth Proportional to 125,690.64, 188,597.52 and 59,128.08

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Solution

The fourth proportional to 125,690.64, 188,597.52 and 59,128.08 is: 88,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,690.64 : 188,597.52 = 59,128.08 : x
  2. Step 2: Convert to fraction form
    125,690.64/188,597.52 = 59,128.08/x
  3. Step 3: Cross multiply
    125,690.64x = 188,597.52 × 59,128.08
  4. Step 4: Simplify right side
    125,690.64x = 11,151,409,250.36
  5. Step 5: Solve for x
    x = 11,151,409,250.36/125,690.64
  6. Step 6: Final answer
    x = 88,721.08

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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.