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Finding the Fourth Proportional to 147,075.01, 220,583.47 and 40,431.45

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Solution

The fourth proportional to 147,075.01, 220,583.47 and 40,431.45 is: 60,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,075.01 : 220,583.47 = 40,431.45 : x
  2. Step 2: Convert to fraction form
    147,075.01/220,583.47 = 40,431.45/x
  3. Step 3: Cross multiply
    147,075.01x = 220,583.47 × 40,431.45
  4. Step 4: Simplify right side
    147,075.01x = 8,918,509,719.66
  5. Step 5: Solve for x
    x = 8,918,509,719.66/147,075.01
  6. Step 6: Final answer
    x = 60,639.19

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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.