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Finding the Fourth Proportional to 74,328.16, 111,477.12 and 61,928.32

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Solution

The fourth proportional to 74,328.16, 111,477.12 and 61,928.32 is: 92,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,328.16 : 111,477.12 = 61,928.32 : x
  2. Step 2: Convert to fraction form
    74,328.16/111,477.12 = 61,928.32/x
  3. Step 3: Cross multiply
    74,328.16x = 111,477.12 × 61,928.32
  4. Step 4: Simplify right side
    74,328.16x = 6,903,590,760.04
  5. Step 5: Solve for x
    x = 6,903,590,760.04/74,328.16
  6. Step 6: Final answer
    x = 92,879.88

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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.