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Finding the Fourth Proportional to 344,075.58, 516,087.86 and 144,387.90

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Solution

The fourth proportional to 344,075.58, 516,087.86 and 144,387.90 is: 216,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,075.58 : 516,087.86 = 144,387.90 : x
  2. Step 2: Convert to fraction form
    344,075.58/516,087.86 = 144,387.90/x
  3. Step 3: Cross multiply
    344,075.58x = 516,087.86 × 144,387.90
  4. Step 4: Simplify right side
    344,075.58x = 74,516,841,598.95
  5. Step 5: Solve for x
    x = 74,516,841,598.95/344,075.58
  6. Step 6: Final answer
    x = 216,571.14

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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.