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Finding the Fourth Proportional to 370,889.10, 556,090.65 and 146,114.10

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Solution

The fourth proportional to 370,889.10, 556,090.65 and 146,114.10 is: 219,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,889.10 : 556,090.65 = 146,114.10 : x
  2. Step 2: Convert to fraction form
    370,889.10/556,090.65 = 146,114.10/x
  3. Step 3: Cross multiply
    370,889.10x = 556,090.65 × 146,114.10
  4. Step 4: Simplify right side
    370,889.10x = 81,252,684,843.17
  5. Step 5: Solve for x
    x = 81,252,684,843.17/370,889.10
  6. Step 6: Final answer
    x = 219,075.42

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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.