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Finding the Fourth Proportional to 61,920.60, 93,075.30 and 60,754.20

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Solution

The fourth proportional to 61,920.60, 93,075.30 and 60,754.20 is: 91,322.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,920.60 : 93,075.30 = 60,754.20 : x
  2. Step 2: Convert to fraction form
    61,920.60/93,075.30 = 60,754.20/x
  3. Step 3: Cross multiply
    61,920.60x = 93,075.30 × 60,754.20
  4. Step 4: Simplify right side
    61,920.60x = 5,654,715,391.26
  5. Step 5: Solve for x
    x = 5,654,715,391.26/61,920.60
  6. Step 6: Final answer
    x = 91,322.04

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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.