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Finding the Fourth Proportional to 125,075.54, 172,631.04 and 79,743.08

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Solution

The fourth proportional to 125,075.54, 172,631.04 and 79,743.08 is: 110,062.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,075.54 : 172,631.04 = 79,743.08 : x
  2. Step 2: Convert to fraction form
    125,075.54/172,631.04 = 79,743.08/x
  3. Step 3: Cross multiply
    125,075.54x = 172,631.04 × 79,743.08
  4. Step 4: Simplify right side
    125,075.54x = 13,766,130,833.20
  5. Step 5: Solve for x
    x = 13,766,130,833.20/125,075.54
  6. Step 6: Final answer
    x = 110,062.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.