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Finding the Fourth Proportional to 249,656.40, 374,265.90 and 149,856.30

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Solution

The fourth proportional to 249,656.40, 374,265.90 and 149,856.30 is: 224,653.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,656.40 : 374,265.90 = 149,856.30 : x
  2. Step 2: Convert to fraction form
    249,656.40/374,265.90 = 149,856.30/x
  3. Step 3: Cross multiply
    249,656.40x = 374,265.90 × 149,856.30
  4. Step 4: Simplify right side
    249,656.40x = 56,086,102,990.17
  5. Step 5: Solve for x
    x = 56,086,102,990.17/249,656.40
  6. Step 6: Final answer
    x = 224,653.18

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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.