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Finding the Fourth Proportional to 98,868.61, 148,237.30 and 69,322.24

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Solution

The fourth proportional to 98,868.61, 148,237.30 and 69,322.24 is: 103,937.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,868.61 : 148,237.30 = 69,322.24 : x
  2. Step 2: Convert to fraction form
    98,868.61/148,237.30 = 69,322.24/x
  3. Step 3: Cross multiply
    98,868.61x = 148,237.30 × 69,322.24
  4. Step 4: Simplify right side
    98,868.61x = 10,276,140,773.06
  5. Step 5: Solve for x
    x = 10,276,140,773.06/98,868.61
  6. Step 6: Final answer
    x = 103,937.35

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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.