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Finding the Fourth Proportional to 98,862.40, 148,210.42 and 80,095.89

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Solution

The fourth proportional to 98,862.40, 148,210.42 and 80,095.89 is: 120,076.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,862.40 : 148,210.42 = 80,095.89 : x
  2. Step 2: Convert to fraction form
    98,862.40/148,210.42 = 80,095.89/x
  3. Step 3: Cross multiply
    98,862.40x = 148,210.42 × 80,095.89
  4. Step 4: Simplify right side
    98,862.40x = 11,871,045,281.85
  5. Step 5: Solve for x
    x = 11,871,045,281.85/98,862.40
  6. Step 6: Final answer
    x = 120,076.44

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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.