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Finding the Fourth Proportional to 249,881.12, 374,743.20 and 83,630.24

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Solution

The fourth proportional to 249,881.12, 374,743.20 and 83,630.24 is: 125,419.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,881.12 : 374,743.20 = 83,630.24 : x
  2. Step 2: Convert to fraction form
    249,881.12/374,743.20 = 83,630.24/x
  3. Step 3: Cross multiply
    249,881.12x = 374,743.20 × 83,630.24
  4. Step 4: Simplify right side
    249,881.12x = 31,339,863,754.37
  5. Step 5: Solve for x
    x = 31,339,863,754.37/249,881.12
  6. Step 6: Final answer
    x = 125,419.09

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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.