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Finding the Fourth Proportional to 99,246.64, 148,526.70 and 61,280.32

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Solution

The fourth proportional to 99,246.64, 148,526.70 and 61,280.32 is: 91,708.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,246.64 : 148,526.70 = 61,280.32 : x
  2. Step 2: Convert to fraction form
    99,246.64/148,526.70 = 61,280.32/x
  3. Step 3: Cross multiply
    99,246.64x = 148,526.70 × 61,280.32
  4. Step 4: Simplify right side
    99,246.64x = 9,101,763,704.54
  5. Step 5: Solve for x
    x = 9,101,763,704.54/99,246.64
  6. Step 6: Final answer
    x = 91,708.53

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1.5x scale

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.