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Finding the Fourth Proportional to 249,407.74, 374,166.95 and 71,900.90

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Solution

The fourth proportional to 249,407.74, 374,166.95 and 71,900.90 is: 107,867.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,407.74 : 374,166.95 = 71,900.90 : x
  2. Step 2: Convert to fraction form
    249,407.74/374,166.95 = 71,900.90/x
  3. Step 3: Cross multiply
    249,407.74x = 374,166.95 × 71,900.90
  4. Step 4: Simplify right side
    249,407.74x = 26,902,939,628.04
  5. Step 5: Solve for x
    x = 26,902,939,628.04/249,407.74
  6. Step 6: Final answer
    x = 107,867.30

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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.