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Finding the Fourth Proportional to 98,488.92, 147,779.54 and 48,541.77

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Solution

The fourth proportional to 98,488.92, 147,779.54 and 48,541.77 is: 72,835.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,488.92 : 147,779.54 = 48,541.77 : x
  2. Step 2: Convert to fraction form
    98,488.92/147,779.54 = 48,541.77/x
  3. Step 3: Cross multiply
    98,488.92x = 147,779.54 × 48,541.77
  4. Step 4: Simplify right side
    98,488.92x = 7,173,480,198.68
  5. Step 5: Solve for x
    x = 7,173,480,198.68/98,488.92
  6. Step 6: Final answer
    x = 72,835.40

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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.