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Finding the Fourth Proportional to 358,961.04, 538,443.72 and 109,643.04

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Solution

The fourth proportional to 358,961.04, 538,443.72 and 109,643.04 is: 164,465.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,961.04 : 538,443.72 = 109,643.04 : x
  2. Step 2: Convert to fraction form
    358,961.04/538,443.72 = 109,643.04/x
  3. Step 3: Cross multiply
    358,961.04x = 538,443.72 × 109,643.04
  4. Step 4: Simplify right side
    358,961.04x = 59,036,606,329.71
  5. Step 5: Solve for x
    x = 59,036,606,329.71/358,961.04
  6. Step 6: Final answer
    x = 164,465.22

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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.