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Finding the Fourth Proportional to 125,017.39, 187,583.01 and 52,990.04

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Solution

The fourth proportional to 125,017.39, 187,583.01 and 52,990.04 is: 79,509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,017.39 : 187,583.01 = 52,990.04 : x
  2. Step 2: Convert to fraction form
    125,017.39/187,583.01 = 52,990.04/x
  3. Step 3: Cross multiply
    125,017.39x = 187,583.01 × 52,990.04
  4. Step 4: Simplify right side
    125,017.39x = 9,940,030,968.74
  5. Step 5: Solve for x
    x = 9,940,030,968.74/125,017.39
  6. Step 6: Final answer
    x = 79,509.19

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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.