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Finding the Fourth Proportional to 321,210.06, 443,254.95 and 176,014.98

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Solution

The fourth proportional to 321,210.06, 443,254.95 and 176,014.98 is: 242,892.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,210.06 : 443,254.95 = 176,014.98 : x
  2. Step 2: Convert to fraction form
    321,210.06/443,254.95 = 176,014.98/x
  3. Step 3: Cross multiply
    321,210.06x = 443,254.95 × 176,014.98
  4. Step 4: Simplify right side
    321,210.06x = 78,019,511,159.15
  5. Step 5: Solve for x
    x = 78,019,511,159.15/321,210.06
  6. Step 6: Final answer
    x = 242,892.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.