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Finding the Fourth Proportional to 418,602.04, 627,903.18 and 123,114.04

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Solution

The fourth proportional to 418,602.04, 627,903.18 and 123,114.04 is: 184,671.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,602.04 : 627,903.18 = 123,114.04 : x
  2. Step 2: Convert to fraction form
    418,602.04/627,903.18 = 123,114.04/x
  3. Step 3: Cross multiply
    418,602.04x = 627,903.18 × 123,114.04
  4. Step 4: Simplify right side
    418,602.04x = 77,303,697,218.65
  5. Step 5: Solve for x
    x = 77,303,697,218.65/418,602.04
  6. Step 6: Final answer
    x = 184,671.10

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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.