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Finding the Fourth Proportional to 249,637.80, 374,456.70 and 187,429.80

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Solution

The fourth proportional to 249,637.80, 374,456.70 and 187,429.80 is: 281,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,637.80 : 374,456.70 = 187,429.80 : x
  2. Step 2: Convert to fraction form
    249,637.80/374,456.70 = 187,429.80/x
  3. Step 3: Cross multiply
    249,637.80x = 374,456.70 × 187,429.80
  4. Step 4: Simplify right side
    249,637.80x = 70,184,344,389.66
  5. Step 5: Solve for x
    x = 70,184,344,389.66/249,637.80
  6. Step 6: Final answer
    x = 281,144.70

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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.