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Finding the Fourth Proportional to 155,490.40, 233,293.20 and 149,730.40

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Solution

The fourth proportional to 155,490.40, 233,293.20 and 149,730.40 is: 224,651.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,490.40 : 233,293.20 = 149,730.40 : x
  2. Step 2: Convert to fraction form
    155,490.40/233,293.20 = 149,730.40/x
  3. Step 3: Cross multiply
    155,490.40x = 233,293.20 × 149,730.40
  4. Step 4: Simplify right side
    155,490.40x = 34,931,084,153.28
  5. Step 5: Solve for x
    x = 34,931,084,153.28/155,490.40
  6. Step 6: Final answer
    x = 224,651.07

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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.