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Finding the Fourth Proportional to 439,903.32, 659,904.18 and 124,384.84

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Solution

The fourth proportional to 439,903.32, 659,904.18 and 124,384.84 is: 186,591.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,903.32 : 659,904.18 = 124,384.84 : x
  2. Step 2: Convert to fraction form
    439,903.32/659,904.18 = 124,384.84/x
  3. Step 3: Cross multiply
    439,903.32x = 659,904.18 × 124,384.84
  4. Step 4: Simplify right side
    439,903.32x = 82,082,075,844.63
  5. Step 5: Solve for x
    x = 82,082,075,844.63/439,903.32
  6. Step 6: Final answer
    x = 186,591.17

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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.