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Finding the Fourth Proportional to 249,939, 344,920.14 and 136,763.64

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Solution

The fourth proportional to 249,939, 344,920.14 and 136,763.64 is: 188,736.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,939 : 344,920.14 = 136,763.64 : x
  2. Step 2: Convert to fraction form
    249,939/344,920.14 = 136,763.64/x
  3. Step 3: Cross multiply
    249,939x = 344,920.14 × 136,763.64
  4. Step 4: Simplify right side
    249,939x = 47,172,533,855.71
  5. Step 5: Solve for x
    x = 47,172,533,855.71/249,939
  6. Step 6: Final answer
    x = 188,736.19

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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.