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Finding the Fourth Proportional to 98,842.85, 148,242.03 and 45,483.65

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Solution

The fourth proportional to 98,842.85, 148,242.03 and 45,483.65 is: 68,215.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,842.85 : 148,242.03 = 45,483.65 : x
  2. Step 2: Convert to fraction form
    98,842.85/148,242.03 = 45,483.65/x
  3. Step 3: Cross multiply
    98,842.85x = 148,242.03 × 45,483.65
  4. Step 4: Simplify right side
    98,842.85x = 6,742,587,866.60
  5. Step 5: Solve for x
    x = 6,742,587,866.60/98,842.85
  6. Step 6: Final answer
    x = 68,215.23

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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.