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Finding the Fourth Proportional to 575,436.60, 863,219.70 and 176,074.20

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Solution

The fourth proportional to 575,436.60, 863,219.70 and 176,074.20 is: 264,131.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,436.60 : 863,219.70 = 176,074.20 : x
  2. Step 2: Convert to fraction form
    575,436.60/863,219.70 = 176,074.20/x
  3. Step 3: Cross multiply
    575,436.60x = 863,219.70 × 176,074.20
  4. Step 4: Simplify right side
    575,436.60x = 151,990,718,101.74
  5. Step 5: Solve for x
    x = 151,990,718,101.74/575,436.60
  6. Step 6: Final answer
    x = 264,131.13

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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.