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Finding the Fourth Proportional to 155,465.40, 233,255.70 and 149,705.40

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Solution

The fourth proportional to 155,465.40, 233,255.70 and 149,705.40 is: 224,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,465.40 : 233,255.70 = 149,705.40 : x
  2. Step 2: Convert to fraction form
    155,465.40/233,255.70 = 149,705.40/x
  3. Step 3: Cross multiply
    155,465.40x = 233,255.70 × 149,705.40
  4. Step 4: Simplify right side
    155,465.40x = 34,919,637,870.78
  5. Step 5: Solve for x
    x = 34,919,637,870.78/155,465.40
  6. Step 6: Final answer
    x = 224,613.57

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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.