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Finding the Fourth Proportional to 178,098.50, 245,775.93 and 98,610.50

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Solution

The fourth proportional to 178,098.50, 245,775.93 and 98,610.50 is: 136,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,098.50 : 245,775.93 = 98,610.50 : x
  2. Step 2: Convert to fraction form
    178,098.50/245,775.93 = 98,610.50/x
  3. Step 3: Cross multiply
    178,098.50x = 245,775.93 × 98,610.50
  4. Step 4: Simplify right side
    178,098.50x = 24,236,087,345.27
  5. Step 5: Solve for x
    x = 24,236,087,345.27/178,098.50
  6. Step 6: Final answer
    x = 136,082.49

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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.