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Finding the Fourth Proportional to 418,599.88, 627,894.66 and 103,059.52

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Solution

The fourth proportional to 418,599.88, 627,894.66 and 103,059.52 is: 154,588.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,599.88 : 627,894.66 = 103,059.52 : x
  2. Step 2: Convert to fraction form
    418,599.88/627,894.66 = 103,059.52/x
  3. Step 3: Cross multiply
    418,599.88x = 627,894.66 × 103,059.52
  4. Step 4: Simplify right side
    418,599.88x = 64,710,522,270.16
  5. Step 5: Solve for x
    x = 64,710,522,270.16/418,599.88
  6. Step 6: Final answer
    x = 154,588.01

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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.