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Finding the Fourth Proportional to 98,488.67, 147,779.14 and 48,541.54

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Solution

The fourth proportional to 98,488.67, 147,779.14 and 48,541.54 is: 72,835.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,488.67 : 147,779.14 = 48,541.54 : x
  2. Step 2: Convert to fraction form
    98,488.67/147,779.14 = 48,541.54/x
  3. Step 3: Cross multiply
    98,488.67x = 147,779.14 × 48,541.54
  4. Step 4: Simplify right side
    98,488.67x = 7,173,427,035.48
  5. Step 5: Solve for x
    x = 7,173,427,035.48/98,488.67
  6. Step 6: Final answer
    x = 72,835.05

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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.