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Finding the Fourth Proportional to 249,701.40, 374,600.70 and 72,214.20

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Solution

The fourth proportional to 249,701.40, 374,600.70 and 72,214.20 is: 108,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,701.40 : 374,600.70 = 72,214.20 : x
  2. Step 2: Convert to fraction form
    249,701.40/374,600.70 = 72,214.20/x
  3. Step 3: Cross multiply
    249,701.40x = 374,600.70 × 72,214.20
  4. Step 4: Simplify right side
    249,701.40x = 27,051,489,869.94
  5. Step 5: Solve for x
    x = 27,051,489,869.94/249,701.40
  6. Step 6: Final answer
    x = 108,335.36

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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.