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Finding the Fourth Proportional to 354,612.40, 532,264.20 and 177,319.60

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Solution

The fourth proportional to 354,612.40, 532,264.20 and 177,319.60 is: 266,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,612.40 : 532,264.20 = 177,319.60 : x
  2. Step 2: Convert to fraction form
    354,612.40/532,264.20 = 177,319.60/x
  3. Step 3: Cross multiply
    354,612.40x = 532,264.20 × 177,319.60
  4. Step 4: Simplify right side
    354,612.40x = 94,380,875,038.32
  5. Step 5: Solve for x
    x = 94,380,875,038.32/354,612.40
  6. Step 6: Final answer
    x = 266,152.21

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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.