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Finding the Fourth Proportional to 125,775.08, 188,638.54 and 48,838.07

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Solution

The fourth proportional to 125,775.08, 188,638.54 and 48,838.07 is: 73,247.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,775.08 : 188,638.54 = 48,838.07 : x
  2. Step 2: Convert to fraction form
    125,775.08/188,638.54 = 48,838.07/x
  3. Step 3: Cross multiply
    125,775.08x = 188,638.54 × 48,838.07
  4. Step 4: Simplify right side
    125,775.08x = 9,212,742,570.72
  5. Step 5: Solve for x
    x = 9,212,742,570.72/125,775.08
  6. Step 6: Final answer
    x = 73,247.76

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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.