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Finding the Fourth Proportional to 178,072.16, 245,739.53 and 97,499.66

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Solution

The fourth proportional to 178,072.16, 245,739.53 and 97,499.66 is: 134,549.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,072.16 : 245,739.53 = 97,499.66 : x
  2. Step 2: Convert to fraction form
    178,072.16/245,739.53 = 97,499.66/x
  3. Step 3: Cross multiply
    178,072.16x = 245,739.53 × 97,499.66
  4. Step 4: Simplify right side
    178,072.16x = 23,959,519,394.86
  5. Step 5: Solve for x
    x = 23,959,519,394.86/178,072.16
  6. Step 6: Final answer
    x = 134,549.50

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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.