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Finding the Fourth Proportional to 174,697.20, 262,045.80 and 145,148.40

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Solution

The fourth proportional to 174,697.20, 262,045.80 and 145,148.40 is: 217,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,697.20 : 262,045.80 = 145,148.40 : x
  2. Step 2: Convert to fraction form
    174,697.20/262,045.80 = 145,148.40/x
  3. Step 3: Cross multiply
    174,697.20x = 262,045.80 × 145,148.40
  4. Step 4: Simplify right side
    174,697.20x = 38,035,528,596.72
  5. Step 5: Solve for x
    x = 38,035,528,596.72/174,697.20
  6. Step 6: Final answer
    x = 217,722.60

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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.