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Finding the Fourth Proportional to 441,509.40, 662,264.10 and 109,085.40

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Solution

The fourth proportional to 441,509.40, 662,264.10 and 109,085.40 is: 163,628.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,509.40 : 662,264.10 = 109,085.40 : x
  2. Step 2: Convert to fraction form
    441,509.40/662,264.10 = 109,085.40/x
  3. Step 3: Cross multiply
    441,509.40x = 662,264.10 × 109,085.40
  4. Step 4: Simplify right side
    441,509.40x = 72,243,344,254.14
  5. Step 5: Solve for x
    x = 72,243,344,254.14/441,509.40
  6. Step 6: Final answer
    x = 163,628.10

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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.