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Finding the Fourth Proportional to 249,634.40, 374,451.60 and 83,422.40

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Solution

The fourth proportional to 249,634.40, 374,451.60 and 83,422.40 is: 125,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,634.40 : 374,451.60 = 83,422.40 : x
  2. Step 2: Convert to fraction form
    249,634.40/374,451.60 = 83,422.40/x
  3. Step 3: Cross multiply
    249,634.40x = 374,451.60 × 83,422.40
  4. Step 4: Simplify right side
    249,634.40x = 31,237,651,155.84
  5. Step 5: Solve for x
    x = 31,237,651,155.84/249,634.40
  6. Step 6: Final answer
    x = 125,133.60

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1.5x scale

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.