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Finding the Fourth Proportional to 249,668.76, 374,447.70 and 72,136.92

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Solution

The fourth proportional to 249,668.76, 374,447.70 and 72,136.92 is: 108,189.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,668.76 : 374,447.70 = 72,136.92 : x
  2. Step 2: Convert to fraction form
    249,668.76/374,447.70 = 72,136.92/x
  3. Step 3: Cross multiply
    249,668.76x = 374,447.70 × 72,136.92
  4. Step 4: Simplify right side
    249,668.76x = 27,011,503,779.08
  5. Step 5: Solve for x
    x = 27,011,503,779.08/249,668.76
  6. Step 6: Final answer
    x = 108,189.36

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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.