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Finding the Fourth Proportional to 99,283.40, 148,925.10 and 69,734.60

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Solution

The fourth proportional to 99,283.40, 148,925.10 and 69,734.60 is: 104,601.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,283.40 : 148,925.10 = 69,734.60 : x
  2. Step 2: Convert to fraction form
    99,283.40/148,925.10 = 69,734.60/x
  3. Step 3: Cross multiply
    99,283.40x = 148,925.10 × 69,734.60
  4. Step 4: Simplify right side
    99,283.40x = 10,385,232,278.46
  5. Step 5: Solve for x
    x = 10,385,232,278.46/99,283.40
  6. Step 6: Final answer
    x = 104,601.90

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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.