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Finding the Fourth Proportional to 249,643.50, 344,508.03 and 136,467.06

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Solution

The fourth proportional to 249,643.50, 344,508.03 and 136,467.06 is: 188,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,643.50 : 344,508.03 = 136,467.06 : x
  2. Step 2: Convert to fraction form
    249,643.50/344,508.03 = 136,467.06/x
  3. Step 3: Cross multiply
    249,643.50x = 344,508.03 × 136,467.06
  4. Step 4: Simplify right side
    249,643.50x = 47,013,998,000.49
  5. Step 5: Solve for x
    x = 47,013,998,000.49/249,643.50
  6. Step 6: Final answer
    x = 188,324.54

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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.