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Finding the Fourth Proportional to 180,676.17, 249,339.51 and 109,042.20

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Solution

The fourth proportional to 180,676.17, 249,339.51 and 109,042.20 is: 150,482.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,676.17 : 249,339.51 = 109,042.20 : x
  2. Step 2: Convert to fraction form
    180,676.17/249,339.51 = 109,042.20/x
  3. Step 3: Cross multiply
    180,676.17x = 249,339.51 × 109,042.20
  4. Step 4: Simplify right side
    180,676.17x = 27,188,528,717.32
  5. Step 5: Solve for x
    x = 27,188,528,717.32/180,676.17
  6. Step 6: Final answer
    x = 150,482.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.