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Finding the Fourth Proportional to 249,642.80, 374,464.20 and 187,434.80

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Solution

The fourth proportional to 249,642.80, 374,464.20 and 187,434.80 is: 281,152.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,642.80 : 374,464.20 = 187,434.80 : x
  2. Step 2: Convert to fraction form
    249,642.80/374,464.20 = 187,434.80/x
  3. Step 3: Cross multiply
    249,642.80x = 374,464.20 × 187,434.80
  4. Step 4: Simplify right side
    249,642.80x = 70,187,622,434.16
  5. Step 5: Solve for x
    x = 70,187,622,434.16/249,642.80
  6. Step 6: Final answer
    x = 281,152.20

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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.