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Finding the Fourth Proportional to 249,645.84, 344,518.76 and 136,474.64

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Solution

The fourth proportional to 249,645.84, 344,518.76 and 136,474.64 is: 188,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,645.84 : 344,518.76 = 136,474.64 : x
  2. Step 2: Convert to fraction form
    249,645.84/344,518.76 = 136,474.64/x
  3. Step 3: Cross multiply
    249,645.84x = 344,518.76 × 136,474.64
  4. Step 4: Simplify right side
    249,645.84x = 47,018,073,744.25
  5. Step 5: Solve for x
    x = 47,018,073,744.25/249,645.84
  6. Step 6: Final answer
    x = 188,339.10

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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.