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Finding the Fourth Proportional to 249,698.40, 374,893.20 and 197,167.20

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Solution

The fourth proportional to 249,698.40, 374,893.20 and 197,167.20 is: 296,023.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,698.40 : 374,893.20 = 197,167.20 : x
  2. Step 2: Convert to fraction form
    249,698.40/374,893.20 = 197,167.20/x
  3. Step 3: Cross multiply
    249,698.40x = 374,893.20 × 197,167.20
  4. Step 4: Simplify right side
    249,698.40x = 73,916,642,543.04
  5. Step 5: Solve for x
    x = 73,916,642,543.04/249,698.40
  6. Step 6: Final answer
    x = 296,023.69

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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.