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Finding the Fourth Proportional to 147,304.40, 220,985.40 and 58,542.80

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Solution

The fourth proportional to 147,304.40, 220,985.40 and 58,542.80 is: 87,825.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,304.40 : 220,985.40 = 58,542.80 : x
  2. Step 2: Convert to fraction form
    147,304.40/220,985.40 = 58,542.80/x
  3. Step 3: Cross multiply
    147,304.40x = 220,985.40 × 58,542.80
  4. Step 4: Simplify right side
    147,304.40x = 12,937,104,075.12
  5. Step 5: Solve for x
    x = 12,937,104,075.12/147,304.40
  6. Step 6: Final answer
    x = 87,825.65

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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.