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Finding the Fourth Proportional to 170,411.20, 255,616.80 and 152,040.40

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Solution

The fourth proportional to 170,411.20, 255,616.80 and 152,040.40 is: 228,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,411.20 : 255,616.80 = 152,040.40 : x
  2. Step 2: Convert to fraction form
    170,411.20/255,616.80 = 152,040.40/x
  3. Step 3: Cross multiply
    170,411.20x = 255,616.80 × 152,040.40
  4. Step 4: Simplify right side
    170,411.20x = 38,864,080,518.72
  5. Step 5: Solve for x
    x = 38,864,080,518.72/170,411.20
  6. Step 6: Final answer
    x = 228,060.60

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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.