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Finding the Fourth Proportional to 166,411.80, 249,617.70 and 136,887.30

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Solution

The fourth proportional to 166,411.80, 249,617.70 and 136,887.30 is: 205,330.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,411.80 : 249,617.70 = 136,887.30 : x
  2. Step 2: Convert to fraction form
    166,411.80/249,617.70 = 136,887.30/x
  3. Step 3: Cross multiply
    166,411.80x = 249,617.70 × 136,887.30
  4. Step 4: Simplify right side
    166,411.80x = 34,169,492,985.21
  5. Step 5: Solve for x
    x = 34,169,492,985.21/166,411.80
  6. Step 6: Final answer
    x = 205,330.95

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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.